Home / 111,424.88-153,777.38-63,685.08

Finding the Fourth Proportional to 111,424.88, 153,777.38 and 63,685.08

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Solution

The fourth proportional to 111,424.88, 153,777.38 and 63,685.08 is: 87,891.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,424.88 : 153,777.38 = 63,685.08 : x
  2. Step 2: Convert to fraction form
    111,424.88/153,777.38 = 63,685.08/x
  3. Step 3: Cross multiply
    111,424.88x = 153,777.38 × 63,685.08
  4. Step 4: Simplify right side
    111,424.88x = 9,793,324,747.49
  5. Step 5: Solve for x
    x = 9,793,324,747.49/111,424.88
  6. Step 6: Final answer
    x = 87,891.72

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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.