Home / 125,111.10-187,890.57-115,098.06

Finding the Fourth Proportional to 125,111.10, 187,890.57 and 115,098.06

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Solution

The fourth proportional to 125,111.10, 187,890.57 and 115,098.06 is: 172,853.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,111.10 : 187,890.57 = 115,098.06 : x
  2. Step 2: Convert to fraction form
    125,111.10/187,890.57 = 115,098.06/x
  3. Step 3: Cross multiply
    125,111.10x = 187,890.57 × 115,098.06
  4. Step 4: Simplify right side
    125,111.10x = 21,625,840,099.29
  5. Step 5: Solve for x
    x = 21,625,840,099.29/125,111.10
  6. Step 6: Final answer
    x = 172,853.09

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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.