Home / 156,118.47-234,177.36-120,631.38

Finding the Fourth Proportional to 156,118.47, 234,177.36 and 120,631.38

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Solution

The fourth proportional to 156,118.47, 234,177.36 and 120,631.38 is: 180,946.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,118.47 : 234,177.36 = 120,631.38 : x
  2. Step 2: Convert to fraction form
    156,118.47/234,177.36 = 120,631.38/x
  3. Step 3: Cross multiply
    156,118.47x = 234,177.36 × 120,631.38
  4. Step 4: Simplify right side
    156,118.47x = 28,249,138,101.56
  5. Step 5: Solve for x
    x = 28,249,138,101.56/156,118.47
  6. Step 6: Final answer
    x = 180,946.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.