Home / 156,254.52-215,489.51-102,519.12

Finding the Fourth Proportional to 156,254.52, 215,489.51 and 102,519.12

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Solution

The fourth proportional to 156,254.52, 215,489.51 and 102,519.12 is: 141,383.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,254.52 : 215,489.51 = 102,519.12 : x
  2. Step 2: Convert to fraction form
    156,254.52/215,489.51 = 102,519.12/x
  3. Step 3: Cross multiply
    156,254.52x = 215,489.51 × 102,519.12
  4. Step 4: Simplify right side
    156,254.52x = 22,091,794,421.84
  5. Step 5: Solve for x
    x = 22,091,794,421.84/156,254.52
  6. Step 6: Final answer
    x = 141,383.39

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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.