Home / 187,679.28-258,997.55-101,638.40

Finding the Fourth Proportional to 187,679.28, 258,997.55 and 101,638.40

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Solution

The fourth proportional to 187,679.28, 258,997.55 and 101,638.40 is: 140,261.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,679.28 : 258,997.55 = 101,638.40 : x
  2. Step 2: Convert to fraction form
    187,679.28/258,997.55 = 101,638.40/x
  3. Step 3: Cross multiply
    187,679.28x = 258,997.55 × 101,638.40
  4. Step 4: Simplify right side
    187,679.28x = 26,324,095,354.46
  5. Step 5: Solve for x
    x = 26,324,095,354.46/187,679.28
  6. Step 6: Final answer
    x = 140,261.06

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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.