Home / 136,445.13-204,325.88-86,374.17

Finding the Fourth Proportional to 136,445.13, 204,325.88 and 86,374.17

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Solution

The fourth proportional to 136,445.13, 204,325.88 and 86,374.17 is: 129,344.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,445.13 : 204,325.88 = 86,374.17 : x
  2. Step 2: Convert to fraction form
    136,445.13/204,325.88 = 86,374.17/x
  3. Step 3: Cross multiply
    136,445.13x = 204,325.88 × 86,374.17
  4. Step 4: Simplify right side
    136,445.13x = 17,648,477,862.65
  5. Step 5: Solve for x
    x = 17,648,477,862.65/136,445.13
  6. Step 6: Final answer
    x = 129,344.87

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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.