Home / 187,123.89-258,227.96-102,239.13

Finding the Fourth Proportional to 187,123.89, 258,227.96 and 102,239.13

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Solution

The fourth proportional to 187,123.89, 258,227.96 and 102,239.13 is: 141,088.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,123.89 : 258,227.96 = 102,239.13 : x
  2. Step 2: Convert to fraction form
    187,123.89/258,227.96 = 102,239.13/x
  3. Step 3: Cross multiply
    187,123.89x = 258,227.96 × 102,239.13
  4. Step 4: Simplify right side
    187,123.89x = 26,401,001,460.88
  5. Step 5: Solve for x
    x = 26,401,001,460.88/187,123.89
  6. Step 6: Final answer
    x = 141,088.35

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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.