Home / 136,165.10-203,761.65-86,269.10

Finding the Fourth Proportional to 136,165.10, 203,761.65 and 86,269.10

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Solution

The fourth proportional to 136,165.10, 203,761.65 and 86,269.10 is: 129,095.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,165.10 : 203,761.65 = 86,269.10 : x
  2. Step 2: Convert to fraction form
    136,165.10/203,761.65 = 86,269.10/x
  3. Step 3: Cross multiply
    136,165.10x = 203,761.65 × 86,269.10
  4. Step 4: Simplify right side
    136,165.10x = 17,578,334,160.02
  5. Step 5: Solve for x
    x = 17,578,334,160.02/136,165.10
  6. Step 6: Final answer
    x = 129,095.74

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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.