Home / 157,432.14-217,254.15-85,812.45

Finding the Fourth Proportional to 157,432.14, 217,254.15 and 85,812.45

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Solution

The fourth proportional to 157,432.14, 217,254.15 and 85,812.45 is: 118,419.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,432.14 : 217,254.15 = 85,812.45 : x
  2. Step 2: Convert to fraction form
    157,432.14/217,254.15 = 85,812.45/x
  3. Step 3: Cross multiply
    157,432.14x = 217,254.15 × 85,812.45
  4. Step 4: Simplify right side
    157,432.14x = 18,643,110,884.17
  5. Step 5: Solve for x
    x = 18,643,110,884.17/157,432.14
  6. Step 6: Final answer
    x = 118,419.98

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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.