Home / 187,612.36-258,902.47-102,729.41

Finding the Fourth Proportional to 187,612.36, 258,902.47 and 102,729.41

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Solution

The fourth proportional to 187,612.36, 258,902.47 and 102,729.41 is: 141,765.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,612.36 : 258,902.47 = 102,729.41 : x
  2. Step 2: Convert to fraction form
    187,612.36/258,902.47 = 102,729.41/x
  3. Step 3: Cross multiply
    187,612.36x = 258,902.47 × 102,729.41
  4. Step 4: Simplify right side
    187,612.36x = 26,596,897,990.64
  5. Step 5: Solve for x
    x = 26,596,897,990.64/187,612.36
  6. Step 6: Final answer
    x = 141,765.17

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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.