Home / 187,142.71-258,263.31-102,265.24

Finding the Fourth Proportional to 187,142.71, 258,263.31 and 102,265.24

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Solution

The fourth proportional to 187,142.71, 258,263.31 and 102,265.24 is: 141,129.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,142.71 : 258,263.31 = 102,265.24 : x
  2. Step 2: Convert to fraction form
    187,142.71/258,263.31 = 102,265.24/x
  3. Step 3: Cross multiply
    187,142.71x = 258,263.31 × 102,265.24
  4. Step 4: Simplify right side
    187,142.71x = 26,411,359,380.34
  5. Step 5: Solve for x
    x = 26,411,359,380.34/187,142.71
  6. Step 6: Final answer
    x = 141,129.51

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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.