Home / 187,966.72-259,737.47-136,890.55

Finding the Fourth Proportional to 187,966.72, 259,737.47 and 136,890.55

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Solution

The fourth proportional to 187,966.72, 259,737.47 and 136,890.55 is: 189,159.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,966.72 : 259,737.47 = 136,890.55 : x
  2. Step 2: Convert to fraction form
    187,966.72/259,737.47 = 136,890.55/x
  3. Step 3: Cross multiply
    187,966.72x = 259,737.47 × 136,890.55
  4. Step 4: Simplify right side
    187,966.72x = 35,555,605,123.91
  5. Step 5: Solve for x
    x = 35,555,605,123.91/187,966.72
  6. Step 6: Final answer
    x = 189,159.04

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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.