Home / 156,403.20-215,822.40-92,730.24

Finding the Fourth Proportional to 156,403.20, 215,822.40 and 92,730.24

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Solution

The fourth proportional to 156,403.20, 215,822.40 and 92,730.24 is: 127,959.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,403.20 : 215,822.40 = 92,730.24 : x
  2. Step 2: Convert to fraction form
    156,403.20/215,822.40 = 92,730.24/x
  3. Step 3: Cross multiply
    156,403.20x = 215,822.40 × 92,730.24
  4. Step 4: Simplify right side
    156,403.20x = 20,013,262,949.38
  5. Step 5: Solve for x
    x = 20,013,262,949.38/156,403.20
  6. Step 6: Final answer
    x = 127,959.42

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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.