Home / 132,142.56-182,350.08-78,429.84

Finding the Fourth Proportional to 132,142.56, 182,350.08 and 78,429.84

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Solution

The fourth proportional to 132,142.56, 182,350.08 and 78,429.84 is: 108,229.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,142.56 : 182,350.08 = 78,429.84 : x
  2. Step 2: Convert to fraction form
    132,142.56/182,350.08 = 78,429.84/x
  3. Step 3: Cross multiply
    132,142.56x = 182,350.08 × 78,429.84
  4. Step 4: Simplify right side
    132,142.56x = 14,301,687,598.39
  5. Step 5: Solve for x
    x = 14,301,687,598.39/132,142.56
  6. Step 6: Final answer
    x = 108,229.23

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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.