Home / 187,617.16-258,909.10-102,734.20

Finding the Fourth Proportional to 187,617.16, 258,909.10 and 102,734.20

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Solution

The fourth proportional to 187,617.16, 258,909.10 and 102,734.20 is: 141,771.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,617.16 : 258,909.10 = 102,734.20 : x
  2. Step 2: Convert to fraction form
    187,617.16/258,909.10 = 102,734.20/x
  3. Step 3: Cross multiply
    187,617.16x = 258,909.10 × 102,734.20
  4. Step 4: Simplify right side
    187,617.16x = 26,598,819,261.22
  5. Step 5: Solve for x
    x = 26,598,819,261.22/187,617.16
  6. Step 6: Final answer
    x = 141,771.78

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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.