Home / 187,387.20-258,592.23-102,503.25

Finding the Fourth Proportional to 187,387.20, 258,592.23 and 102,503.25

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Solution

The fourth proportional to 187,387.20, 258,592.23 and 102,503.25 is: 141,453.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,387.20 : 258,592.23 = 102,503.25 : x
  2. Step 2: Convert to fraction form
    187,387.20/258,592.23 = 102,503.25/x
  3. Step 3: Cross multiply
    187,387.20x = 258,592.23 × 102,503.25
  4. Step 4: Simplify right side
    187,387.20x = 26,506,543,999.75
  5. Step 5: Solve for x
    x = 26,506,543,999.75/187,387.20
  6. Step 6: Final answer
    x = 141,453.33

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1.5x scale

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.