Home / 91,838.16-137,780.12-26,174.16

Finding the Fourth Proportional to 91,838.16, 137,780.12 and 26,174.16

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Solution

The fourth proportional to 91,838.16, 137,780.12 and 26,174.16 is: 39,267.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,838.16 : 137,780.12 = 26,174.16 : x
  2. Step 2: Convert to fraction form
    91,838.16/137,780.12 = 26,174.16/x
  3. Step 3: Cross multiply
    91,838.16x = 137,780.12 × 26,174.16
  4. Step 4: Simplify right side
    91,838.16x = 3,606,278,905.70
  5. Step 5: Solve for x
    x = 3,606,278,905.70/91,838.16
  6. Step 6: Final answer
    x = 39,267.76

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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.