Home / 136,293.12-188,083.04-75,862.80

Finding the Fourth Proportional to 136,293.12, 188,083.04 and 75,862.80

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Solution

The fourth proportional to 136,293.12, 188,083.04 and 75,862.80 is: 104,689.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,293.12 : 188,083.04 = 75,862.80 : x
  2. Step 2: Convert to fraction form
    136,293.12/188,083.04 = 75,862.80/x
  3. Step 3: Cross multiply
    136,293.12x = 188,083.04 × 75,862.80
  4. Step 4: Simplify right side
    136,293.12x = 14,268,506,046.91
  5. Step 5: Solve for x
    x = 14,268,506,046.91/136,293.12
  6. Step 6: Final answer
    x = 104,689.85

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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.