Home / 108,569.10-162,853.65-73,139.70

Finding the Fourth Proportional to 108,569.10, 162,853.65 and 73,139.70

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Solution

The fourth proportional to 108,569.10, 162,853.65 and 73,139.70 is: 109,709.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,569.10 : 162,853.65 = 73,139.70 : x
  2. Step 2: Convert to fraction form
    108,569.10/162,853.65 = 73,139.70/x
  3. Step 3: Cross multiply
    108,569.10x = 162,853.65 × 73,139.70
  4. Step 4: Simplify right side
    108,569.10x = 11,911,067,104.91
  5. Step 5: Solve for x
    x = 11,911,067,104.91/108,569.10
  6. Step 6: Final answer
    x = 109,709.55

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1.5x scale

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.