Home / 132,158.79-182,296.18-78,405.75

Finding the Fourth Proportional to 132,158.79, 182,296.18 and 78,405.75

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Solution

The fourth proportional to 132,158.79, 182,296.18 and 78,405.75 is: 108,150.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,158.79 : 182,296.18 = 78,405.75 : x
  2. Step 2: Convert to fraction form
    132,158.79/182,296.18 = 78,405.75/x
  3. Step 3: Cross multiply
    132,158.79x = 182,296.18 × 78,405.75
  4. Step 4: Simplify right side
    132,158.79x = 14,293,068,323.01
  5. Step 5: Solve for x
    x = 14,293,068,323.01/132,158.79
  6. Step 6: Final answer
    x = 108,150.72

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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.