Home / 136,139.16-204,229.80-42,636

Finding the Fourth Proportional to 136,139.16, 204,229.80 and 42,636

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Solution

The fourth proportional to 136,139.16, 204,229.80 and 42,636 is: 63,960.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,139.16 : 204,229.80 = 42,636 : x
  2. Step 2: Convert to fraction form
    136,139.16/204,229.80 = 42,636/x
  3. Step 3: Cross multiply
    136,139.16x = 204,229.80 × 42,636
  4. Step 4: Simplify right side
    136,139.16x = 8,707,541,752.80
  5. Step 5: Solve for x
    x = 8,707,541,752.80/136,139.16
  6. Step 6: Final answer
    x = 63,960.60

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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.