Home / 157,381.12-217,186.88-93,721.60

Finding the Fourth Proportional to 157,381.12, 217,186.88 and 93,721.60

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Solution

The fourth proportional to 157,381.12, 217,186.88 and 93,721.60 is: 129,336.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,381.12 : 217,186.88 = 93,721.60 : x
  2. Step 2: Convert to fraction form
    157,381.12/217,186.88 = 93,721.60/x
  3. Step 3: Cross multiply
    157,381.12x = 217,186.88 × 93,721.60
  4. Step 4: Simplify right side
    157,381.12x = 20,355,101,892.61
  5. Step 5: Solve for x
    x = 20,355,101,892.61/157,381.12
  6. Step 6: Final answer
    x = 129,336.36

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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.