Home / 102,059.35-153,114.90-72,132.47

Finding the Fourth Proportional to 102,059.35, 153,114.90 and 72,132.47

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Solution

The fourth proportional to 102,059.35, 153,114.90 and 72,132.47 is: 108,216.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,059.35 : 153,114.90 = 72,132.47 : x
  2. Step 2: Convert to fraction form
    102,059.35/153,114.90 = 72,132.47/x
  3. Step 3: Cross multiply
    102,059.35x = 153,114.90 × 72,132.47
  4. Step 4: Simplify right side
    102,059.35x = 11,044,555,930.80
  5. Step 5: Solve for x
    x = 11,044,555,930.80/102,059.35
  6. Step 6: Final answer
    x = 108,216.99

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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.