Home / 106,613.01-147,134.61-61,305.72

Finding the Fourth Proportional to 106,613.01, 147,134.61 and 61,305.72

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Solution

The fourth proportional to 106,613.01, 147,134.61 and 61,305.72 is: 84,606.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,613.01 : 147,134.61 = 61,305.72 : x
  2. Step 2: Convert to fraction form
    106,613.01/147,134.61 = 61,305.72/x
  3. Step 3: Cross multiply
    106,613.01x = 147,134.61 × 61,305.72
  4. Step 4: Simplify right side
    106,613.01x = 9,020,193,202.97
  5. Step 5: Solve for x
    x = 9,020,193,202.97/106,613.01
  6. Step 6: Final answer
    x = 84,606.87

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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.