Home / 122,619.40-183,929.10-48,747.40

Finding the Fourth Proportional to 122,619.40, 183,929.10 and 48,747.40

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Solution

The fourth proportional to 122,619.40, 183,929.10 and 48,747.40 is: 73,121.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,619.40 : 183,929.10 = 48,747.40 : x
  2. Step 2: Convert to fraction form
    122,619.40/183,929.10 = 48,747.40/x
  3. Step 3: Cross multiply
    122,619.40x = 183,929.10 × 48,747.40
  4. Step 4: Simplify right side
    122,619.40x = 8,966,065,409.34
  5. Step 5: Solve for x
    x = 8,966,065,409.34/122,619.40
  6. Step 6: Final answer
    x = 73,121.10

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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.