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Finding the Fourth Proportional to 136,494.48, 188,276.76 and 93,979.20

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Solution

The fourth proportional to 136,494.48, 188,276.76 and 93,979.20 is: 129,632.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,494.48 : 188,276.76 = 93,979.20 : x
  2. Step 2: Convert to fraction form
    136,494.48/188,276.76 = 93,979.20/x
  3. Step 3: Cross multiply
    136,494.48x = 188,276.76 × 93,979.20
  4. Step 4: Simplify right side
    136,494.48x = 17,694,099,283.39
  5. Step 5: Solve for x
    x = 17,694,099,283.39/136,494.48
  6. Step 6: Final answer
    x = 129,632.34

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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.