Home / 187,522.40-258,780.48-102,638.72

Finding the Fourth Proportional to 187,522.40, 258,780.48 and 102,638.72

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Solution

The fourth proportional to 187,522.40, 258,780.48 and 102,638.72 is: 141,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,522.40 : 258,780.48 = 102,638.72 : x
  2. Step 2: Convert to fraction form
    187,522.40/258,780.48 = 102,638.72/x
  3. Step 3: Cross multiply
    187,522.40x = 258,780.48 × 102,638.72
  4. Step 4: Simplify right side
    187,522.40x = 26,560,897,228.19
  5. Step 5: Solve for x
    x = 26,560,897,228.19/187,522.40
  6. Step 6: Final answer
    x = 141,641.20

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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.