Home / 157,743.87-217,687.04-101,155.47

Finding the Fourth Proportional to 157,743.87, 217,687.04 and 101,155.47

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Solution

The fourth proportional to 157,743.87, 217,687.04 and 101,155.47 is: 139,594.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,743.87 : 217,687.04 = 101,155.47 : x
  2. Step 2: Convert to fraction form
    157,743.87/217,687.04 = 101,155.47/x
  3. Step 3: Cross multiply
    157,743.87x = 217,687.04 × 101,155.47
  4. Step 4: Simplify right side
    157,743.87x = 22,020,234,338.33
  5. Step 5: Solve for x
    x = 22,020,234,338.33/157,743.87
  6. Step 6: Final answer
    x = 139,594.87

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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.