Home / 187,470.68-258,709.56-102,587.76

Finding the Fourth Proportional to 187,470.68, 258,709.56 and 102,587.76

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Solution

The fourth proportional to 187,470.68, 258,709.56 and 102,587.76 is: 141,571.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,470.68 : 258,709.56 = 102,587.76 : x
  2. Step 2: Convert to fraction form
    187,470.68/258,709.56 = 102,587.76/x
  3. Step 3: Cross multiply
    187,470.68x = 258,709.56 × 102,587.76
  4. Step 4: Simplify right side
    187,470.68x = 26,540,434,250.99
  5. Step 5: Solve for x
    x = 26,540,434,250.99/187,470.68
  6. Step 6: Final answer
    x = 141,571.12

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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.