Home / 157,345.47-217,136.77-85,725.49

Finding the Fourth Proportional to 157,345.47, 217,136.77 and 85,725.49

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Solution

The fourth proportional to 157,345.47, 217,136.77 and 85,725.49 is: 118,301.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,345.47 : 217,136.77 = 85,725.49 : x
  2. Step 2: Convert to fraction form
    157,345.47/217,136.77 = 85,725.49/x
  3. Step 3: Cross multiply
    157,345.47x = 217,136.77 × 85,725.49
  4. Step 4: Simplify right side
    157,345.47x = 18,614,156,005.27
  5. Step 5: Solve for x
    x = 18,614,156,005.27/157,345.47
  6. Step 6: Final answer
    x = 118,301.19

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1.5x scale

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.