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Finding the Fourth Proportional to 127,239, 175,597.11 and 70,654.02

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Solution

The fourth proportional to 127,239, 175,597.11 and 70,654.02 is: 97,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,239 : 175,597.11 = 70,654.02 : x
  2. Step 2: Convert to fraction form
    127,239/175,597.11 = 70,654.02/x
  3. Step 3: Cross multiply
    127,239x = 175,597.11 × 70,654.02
  4. Step 4: Simplify right side
    127,239x = 12,406,641,721.88
  5. Step 5: Solve for x
    x = 12,406,641,721.88/127,239
  6. Step 6: Final answer
    x = 97,506.60

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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.