Home / 187,128.89-258,234.84-102,244.13

Finding the Fourth Proportional to 187,128.89, 258,234.84 and 102,244.13

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Solution

The fourth proportional to 187,128.89, 258,234.84 and 102,244.13 is: 141,095.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,128.89 : 258,234.84 = 102,244.13 : x
  2. Step 2: Convert to fraction form
    187,128.89/258,234.84 = 102,244.13/x
  3. Step 3: Cross multiply
    187,128.89x = 258,234.84 × 102,244.13
  4. Step 4: Simplify right side
    187,128.89x = 26,402,996,551.49
  5. Step 5: Solve for x
    x = 26,402,996,551.49/187,128.89
  6. Step 6: Final answer
    x = 141,095.24

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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.