Home / 122,136.68-183,160.05-42,154.29

Finding the Fourth Proportional to 122,136.68, 183,160.05 and 42,154.29

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Solution

The fourth proportional to 122,136.68, 183,160.05 and 42,154.29 is: 63,215.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,136.68 : 183,160.05 = 42,154.29 : x
  2. Step 2: Convert to fraction form
    122,136.68/183,160.05 = 42,154.29/x
  3. Step 3: Cross multiply
    122,136.68x = 183,160.05 × 42,154.29
  4. Step 4: Simplify right side
    122,136.68x = 7,720,981,943.15
  5. Step 5: Solve for x
    x = 7,720,981,943.15/122,136.68
  6. Step 6: Final answer
    x = 63,215.92

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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.