Home / 122,478,137.20-183,717,205.80-105,849,938.80

Finding the Fourth Proportional to 122,478,137.20, 183,717,205.80 and 105,849,938.80

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Solution

The fourth proportional to 122,478,137.20, 183,717,205.80 and 105,849,938.80 is: 158,774,908.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,478,137.20 : 183,717,205.80 = 105,849,938.80 : x
  2. Step 2: Convert to fraction form
    122,478,137.20/183,717,205.80 = 105,849,938.80/x
  3. Step 3: Cross multiply
    122,478,137.20x = 183,717,205.80 × 105,849,938.80
  4. Step 4: Simplify right side
    122,478,137.20x = 19,446,454,990,437,004
  5. Step 5: Solve for x
    x = 19,446,454,990,437,004/122,478,137.20
  6. Step 6: Final answer
    x = 158,774,908.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.