Home / 97,686.92-146,528.78-31,126.15

Finding the Fourth Proportional to 97,686.92, 146,528.78 and 31,126.15

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Solution

The fourth proportional to 97,686.92, 146,528.78 and 31,126.15 is: 46,688.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,686.92 : 146,528.78 = 31,126.15 : x
  2. Step 2: Convert to fraction form
    97,686.92/146,528.78 = 31,126.15/x
  3. Step 3: Cross multiply
    97,686.92x = 146,528.78 × 31,126.15
  4. Step 4: Simplify right side
    97,686.92x = 4,560,876,785.60
  5. Step 5: Solve for x
    x = 4,560,876,785.60/97,686.92
  6. Step 6: Final answer
    x = 46,688.72

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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.