Home / 157,306.42-217,084.76-85,687.03

Finding the Fourth Proportional to 157,306.42, 217,084.76 and 85,687.03

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Solution

The fourth proportional to 157,306.42, 217,084.76 and 85,687.03 is: 118,249.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,306.42 : 217,084.76 = 85,687.03 : x
  2. Step 2: Convert to fraction form
    157,306.42/217,084.76 = 85,687.03/x
  3. Step 3: Cross multiply
    157,306.42x = 217,084.76 × 85,687.03
  4. Step 4: Simplify right side
    157,306.42x = 18,601,348,342.66
  5. Step 5: Solve for x
    x = 18,601,348,342.66/157,306.42
  6. Step 6: Final answer
    x = 118,249.14

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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.