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Finding the Fourth Proportional to 127,304, 175,679.52 and 70,720.64

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Solution

The fourth proportional to 127,304, 175,679.52 and 70,720.64 is: 97,594.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,304 : 175,679.52 = 70,720.64 : x
  2. Step 2: Convert to fraction form
    127,304/175,679.52 = 70,720.64/x
  3. Step 3: Cross multiply
    127,304x = 175,679.52 × 70,720.64
  4. Step 4: Simplify right side
    127,304x = 12,424,168,089.29
  5. Step 5: Solve for x
    x = 12,424,168,089.29/127,304
  6. Step 6: Final answer
    x = 97,594.48

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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.