Home / 131,478.93-181,329.17-111,160.08

Finding the Fourth Proportional to 131,478.93, 181,329.17 and 111,160.08

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Solution

The fourth proportional to 131,478.93, 181,329.17 and 111,160.08 is: 153,306.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,478.93 : 181,329.17 = 111,160.08 : x
  2. Step 2: Convert to fraction form
    131,478.93/181,329.17 = 111,160.08/x
  3. Step 3: Cross multiply
    131,478.93x = 181,329.17 × 111,160.08
  4. Step 4: Simplify right side
    131,478.93x = 20,156,564,487.73
  5. Step 5: Solve for x
    x = 20,156,564,487.73/131,478.93
  6. Step 6: Final answer
    x = 153,306.42

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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.