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Finding the Fourth Proportional to 127,242.72, 175,600.80 and 70,654.32

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Solution

The fourth proportional to 127,242.72, 175,600.80 and 70,654.32 is: 97,506.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,242.72 : 175,600.80 = 70,654.32 : x
  2. Step 2: Convert to fraction form
    127,242.72/175,600.80 = 70,654.32/x
  3. Step 3: Cross multiply
    127,242.72x = 175,600.80 × 70,654.32
  4. Step 4: Simplify right side
    127,242.72x = 12,406,955,115.46
  5. Step 5: Solve for x
    x = 12,406,955,115.46/127,242.72
  6. Step 6: Final answer
    x = 97,506.21

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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.