Home / 157,639.23-217,542.15-101,050.65

Finding the Fourth Proportional to 157,639.23, 217,542.15 and 101,050.65

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Solution

The fourth proportional to 157,639.23, 217,542.15 and 101,050.65 is: 139,449.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,639.23 : 217,542.15 = 101,050.65 : x
  2. Step 2: Convert to fraction form
    157,639.23/217,542.15 = 101,050.65/x
  3. Step 3: Cross multiply
    157,639.23x = 217,542.15 × 101,050.65
  4. Step 4: Simplify right side
    157,639.23x = 21,982,775,659.90
  5. Step 5: Solve for x
    x = 21,982,775,659.90/157,639.23
  6. Step 6: Final answer
    x = 139,449.91

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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.