Home / 132,438.72-182,640.12-84,609.04

Finding the Fourth Proportional to 132,438.72, 182,640.12 and 84,609.04

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Solution

The fourth proportional to 132,438.72, 182,640.12 and 84,609.04 is: 116,680.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,438.72 : 182,640.12 = 84,609.04 : x
  2. Step 2: Convert to fraction form
    132,438.72/182,640.12 = 84,609.04/x
  3. Step 3: Cross multiply
    132,438.72x = 182,640.12 × 84,609.04
  4. Step 4: Simplify right side
    132,438.72x = 15,453,005,218.68
  5. Step 5: Solve for x
    x = 15,453,005,218.68/132,438.72
  6. Step 6: Final answer
    x = 116,680.42

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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.