Home / 157,781.16-217,614.60-101,197.80

Finding the Fourth Proportional to 157,781.16, 217,614.60 and 101,197.80

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Solution

The fourth proportional to 157,781.16, 217,614.60 and 101,197.80 is: 139,573.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,781.16 : 217,614.60 = 101,197.80 : x
  2. Step 2: Convert to fraction form
    157,781.16/217,614.60 = 101,197.80/x
  3. Step 3: Cross multiply
    157,781.16x = 217,614.60 × 101,197.80
  4. Step 4: Simplify right side
    157,781.16x = 22,022,118,767.88
  5. Step 5: Solve for x
    x = 22,022,118,767.88/157,781.16
  6. Step 6: Final answer
    x = 139,573.82

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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.