Home / 122,212.80-183,319.20-105,810.30

Finding the Fourth Proportional to 122,212.80, 183,319.20 and 105,810.30

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Solution

The fourth proportional to 122,212.80, 183,319.20 and 105,810.30 is: 158,715.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,212.80 : 183,319.20 = 105,810.30 : x
  2. Step 2: Convert to fraction form
    122,212.80/183,319.20 = 105,810.30/x
  3. Step 3: Cross multiply
    122,212.80x = 183,319.20 × 105,810.30
  4. Step 4: Simplify right side
    122,212.80x = 19,397,059,547.76
  5. Step 5: Solve for x
    x = 19,397,059,547.76/122,212.80
  6. Step 6: Final answer
    x = 158,715.45

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1.5x scale

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.