Home / 132,677.28-183,079.20-78,979.68

Finding the Fourth Proportional to 132,677.28, 183,079.20 and 78,979.68

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Solution

The fourth proportional to 132,677.28, 183,079.20 and 78,979.68 is: 108,982.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,677.28 : 183,079.20 = 78,979.68 : x
  2. Step 2: Convert to fraction form
    132,677.28/183,079.20 = 78,979.68/x
  3. Step 3: Cross multiply
    132,677.28x = 183,079.20 × 78,979.68
  4. Step 4: Simplify right side
    132,677.28x = 14,459,536,630.66
  5. Step 5: Solve for x
    x = 14,459,536,630.66/132,677.28
  6. Step 6: Final answer
    x = 108,982.76

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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.