Home / 124,142.05-171,302.11-73,151.47

Finding the Fourth Proportional to 124,142.05, 171,302.11 and 73,151.47

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Solution

The fourth proportional to 124,142.05, 171,302.11 and 73,151.47 is: 100,940.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,142.05 : 171,302.11 = 73,151.47 : x
  2. Step 2: Convert to fraction form
    124,142.05/171,302.11 = 73,151.47/x
  3. Step 3: Cross multiply
    124,142.05x = 171,302.11 × 73,151.47
  4. Step 4: Simplify right side
    124,142.05x = 12,531,001,191.85
  5. Step 5: Solve for x
    x = 12,531,001,191.85/124,142.05
  6. Step 6: Final answer
    x = 100,940.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.