Home / 106,939.18-147,579.54-61,613.56

Finding the Fourth Proportional to 106,939.18, 147,579.54 and 61,613.56

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Solution

The fourth proportional to 106,939.18, 147,579.54 and 61,613.56 is: 85,028.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,939.18 : 147,579.54 = 61,613.56 : x
  2. Step 2: Convert to fraction form
    106,939.18/147,579.54 = 61,613.56/x
  3. Step 3: Cross multiply
    106,939.18x = 147,579.54 × 61,613.56
  4. Step 4: Simplify right side
    106,939.18x = 9,092,900,842.56
  5. Step 5: Solve for x
    x = 9,092,900,842.56/106,939.18
  6. Step 6: Final answer
    x = 85,028.71

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1.5x scale

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.