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Finding the Fourth Proportional to 187,503.56, 258,753.39 and 102,620.42

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Solution

The fourth proportional to 187,503.56, 258,753.39 and 102,620.42 is: 141,615.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,503.56 : 258,753.39 = 102,620.42 : x
  2. Step 2: Convert to fraction form
    187,503.56/258,753.39 = 102,620.42/x
  3. Step 3: Cross multiply
    187,503.56x = 258,753.39 × 102,620.42
  4. Step 4: Simplify right side
    187,503.56x = 26,553,381,558.22
  5. Step 5: Solve for x
    x = 26,553,381,558.22/187,503.56
  6. Step 6: Final answer
    x = 141,615.35

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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.