Home / 257,360.19-386,091.89-88,886.70

Finding the Fourth Proportional to 257,360.19, 386,091.89 and 88,886.70

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Solution

The fourth proportional to 257,360.19, 386,091.89 and 88,886.70 is: 133,347.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,360.19 : 386,091.89 = 88,886.70 : x
  2. Step 2: Convert to fraction form
    257,360.19/386,091.89 = 88,886.70/x
  3. Step 3: Cross multiply
    257,360.19x = 386,091.89 × 88,886.70
  4. Step 4: Simplify right side
    257,360.19x = 34,318,433,554.43
  5. Step 5: Solve for x
    x = 34,318,433,554.43/257,360.19
  6. Step 6: Final answer
    x = 133,347.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.