Home / 106,431.68-146,876.76-58,686.74

Finding the Fourth Proportional to 106,431.68, 146,876.76 and 58,686.74

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Solution

The fourth proportional to 106,431.68, 146,876.76 and 58,686.74 is: 80,988.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,431.68 : 146,876.76 = 58,686.74 : x
  2. Step 2: Convert to fraction form
    106,431.68/146,876.76 = 58,686.74/x
  3. Step 3: Cross multiply
    106,431.68x = 146,876.76 × 58,686.74
  4. Step 4: Simplify right side
    106,431.68x = 8,619,718,226.16
  5. Step 5: Solve for x
    x = 8,619,718,226.16/106,431.68
  6. Step 6: Final answer
    x = 80,988.28

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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.