Home / 121,357.23-182,117.85-42,472.14

Finding the Fourth Proportional to 121,357.23, 182,117.85 and 42,472.14

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Solution

The fourth proportional to 121,357.23, 182,117.85 and 42,472.14 is: 63,736.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,357.23 : 182,117.85 = 42,472.14 : x
  2. Step 2: Convert to fraction form
    121,357.23/182,117.85 = 42,472.14/x
  3. Step 3: Cross multiply
    121,357.23x = 182,117.85 × 42,472.14
  4. Step 4: Simplify right side
    121,357.23x = 7,734,934,821.70
  5. Step 5: Solve for x
    x = 7,734,934,821.70/121,357.23
  6. Step 6: Final answer
    x = 63,736.91

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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.