Home / 111,601.13-154,019.88-61,309.85

Finding the Fourth Proportional to 111,601.13, 154,019.88 and 61,309.85

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Solution

The fourth proportional to 111,601.13, 154,019.88 and 61,309.85 is: 84,613.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,601.13 : 154,019.88 = 61,309.85 : x
  2. Step 2: Convert to fraction form
    111,601.13/154,019.88 = 61,309.85/x
  3. Step 3: Cross multiply
    111,601.13x = 154,019.88 × 61,309.85
  4. Step 4: Simplify right side
    111,601.13x = 9,442,934,969.72
  5. Step 5: Solve for x
    x = 9,442,934,969.72/111,601.13
  6. Step 6: Final answer
    x = 84,613.26

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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.