Home / 157,616.12-217,510.97-85,997.66

Finding the Fourth Proportional to 157,616.12, 217,510.97 and 85,997.66

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Solution

The fourth proportional to 157,616.12, 217,510.97 and 85,997.66 is: 118,677.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,616.12 : 217,510.97 = 85,997.66 : x
  2. Step 2: Convert to fraction form
    157,616.12/217,510.97 = 85,997.66/x
  3. Step 3: Cross multiply
    157,616.12x = 217,510.97 × 85,997.66
  4. Step 4: Simplify right side
    157,616.12x = 18,705,432,926.79
  5. Step 5: Solve for x
    x = 18,705,432,926.79/157,616.12
  6. Step 6: Final answer
    x = 118,677.15

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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.