Home / 106,484.16-146,939.52-61,147.68

Finding the Fourth Proportional to 106,484.16, 146,939.52 and 61,147.68

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Solution

The fourth proportional to 106,484.16, 146,939.52 and 61,147.68 is: 84,378.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,484.16 : 146,939.52 = 61,147.68 : x
  2. Step 2: Convert to fraction form
    106,484.16/146,939.52 = 61,147.68/x
  3. Step 3: Cross multiply
    106,484.16x = 146,939.52 × 61,147.68
  4. Step 4: Simplify right side
    106,484.16x = 8,985,010,748.31
  5. Step 5: Solve for x
    x = 8,985,010,748.31/106,484.16
  6. Step 6: Final answer
    x = 84,378.85

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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.