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Finding the Fourth Proportional to 130,013.92, 179,419.17 and 70,397.92

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Solution

The fourth proportional to 130,013.92, 179,419.17 and 70,397.92 is: 97,149.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,013.92 : 179,419.17 = 70,397.92 : x
  2. Step 2: Convert to fraction form
    130,013.92/179,419.17 = 70,397.92/x
  3. Step 3: Cross multiply
    130,013.92x = 179,419.17 × 70,397.92
  4. Step 4: Simplify right side
    130,013.92x = 12,630,736,376.13
  5. Step 5: Solve for x
    x = 12,630,736,376.13/130,013.92
  6. Step 6: Final answer
    x = 97,149.11

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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.