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Finding the Fourth Proportional to 127,008, 175,277.12 and 70,419.38

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Solution

The fourth proportional to 127,008, 175,277.12 and 70,419.38 is: 97,182.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,008 : 175,277.12 = 70,419.38 : x
  2. Step 2: Convert to fraction form
    127,008/175,277.12 = 70,419.38/x
  3. Step 3: Cross multiply
    127,008x = 175,277.12 × 70,419.38
  4. Step 4: Simplify right side
    127,008x = 12,342,904,890.10
  5. Step 5: Solve for x
    x = 12,342,904,890.10/127,008
  6. Step 6: Final answer
    x = 97,182.11

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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.