Home / 156,138.59-215,475.21-95,742.52

Finding the Fourth Proportional to 156,138.59, 215,475.21 and 95,742.52

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Solution

The fourth proportional to 156,138.59, 215,475.21 and 95,742.52 is: 132,127.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,138.59 : 215,475.21 = 95,742.52 : x
  2. Step 2: Convert to fraction form
    156,138.59/215,475.21 = 95,742.52/x
  3. Step 3: Cross multiply
    156,138.59x = 215,475.21 × 95,742.52
  4. Step 4: Simplify right side
    156,138.59x = 20,630,139,602.93
  5. Step 5: Solve for x
    x = 20,630,139,602.93/156,138.59
  6. Step 6: Final answer
    x = 132,127.10

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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.