Home / 156,045.90-215,343.37-84,425.88

Finding the Fourth Proportional to 156,045.90, 215,343.37 and 84,425.88

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Solution

The fourth proportional to 156,045.90, 215,343.37 and 84,425.88 is: 116,507.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,045.90 : 215,343.37 = 84,425.88 : x
  2. Step 2: Convert to fraction form
    156,045.90/215,343.37 = 84,425.88/x
  3. Step 3: Cross multiply
    156,045.90x = 215,343.37 × 84,425.88
  4. Step 4: Simplify right side
    156,045.90x = 18,180,553,514.42
  5. Step 5: Solve for x
    x = 18,180,553,514.42/156,045.90
  6. Step 6: Final answer
    x = 116,507.73

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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.