Home / 187,765.29-259,117.11-102,885.39

Finding the Fourth Proportional to 187,765.29, 259,117.11 and 102,885.39

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Solution

The fourth proportional to 187,765.29, 259,117.11 and 102,885.39 is: 141,982.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,765.29 : 259,117.11 = 102,885.39 : x
  2. Step 2: Convert to fraction form
    187,765.29/259,117.11 = 102,885.39/x
  3. Step 3: Cross multiply
    187,765.29x = 259,117.11 × 102,885.39
  4. Step 4: Simplify right side
    187,765.29x = 26,659,364,918.02
  5. Step 5: Solve for x
    x = 26,659,364,918.02/187,765.29
  6. Step 6: Final answer
    x = 141,982.39

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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.