Home / 157,332.32-217,117.53-85,712.39

Finding the Fourth Proportional to 157,332.32, 217,117.53 and 85,712.39

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Solution

The fourth proportional to 157,332.32, 217,117.53 and 85,712.39 is: 118,282.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,332.32 : 217,117.53 = 85,712.39 : x
  2. Step 2: Convert to fraction form
    157,332.32/217,117.53 = 85,712.39/x
  3. Step 3: Cross multiply
    157,332.32x = 217,117.53 × 85,712.39
  4. Step 4: Simplify right side
    157,332.32x = 18,609,662,407.20
  5. Step 5: Solve for x
    x = 18,609,662,407.20/157,332.32
  6. Step 6: Final answer
    x = 118,282.51

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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.