Home / 187,585.06-258,873.90-102,702.70

Finding the Fourth Proportional to 187,585.06, 258,873.90 and 102,702.70

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Solution

The fourth proportional to 187,585.06, 258,873.90 and 102,702.70 is: 141,733.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,585.06 : 258,873.90 = 102,702.70 : x
  2. Step 2: Convert to fraction form
    187,585.06/258,873.90 = 102,702.70/x
  3. Step 3: Cross multiply
    187,585.06x = 258,873.90 × 102,702.70
  4. Step 4: Simplify right side
    187,585.06x = 26,587,048,489.53
  5. Step 5: Solve for x
    x = 26,587,048,489.53/187,585.06
  6. Step 6: Final answer
    x = 141,733.29

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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.