Home / 111,326.45-153,613.80-63,569.66

Finding the Fourth Proportional to 111,326.45, 153,613.80 and 63,569.66

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Solution

The fourth proportional to 111,326.45, 153,613.80 and 63,569.66 is: 87,716.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,326.45 : 153,613.80 = 63,569.66 : x
  2. Step 2: Convert to fraction form
    111,326.45/153,613.80 = 63,569.66/x
  3. Step 3: Cross multiply
    111,326.45x = 153,613.80 × 63,569.66
  4. Step 4: Simplify right side
    111,326.45x = 9,765,176,269.24
  5. Step 5: Solve for x
    x = 9,765,176,269.24/111,326.45
  6. Step 6: Final answer
    x = 87,716.59

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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.