Home / 111,432.36-153,760.38-63,676.48

Finding the Fourth Proportional to 111,432.36, 153,760.38 and 63,676.48

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Solution

The fourth proportional to 111,432.36, 153,760.38 and 63,676.48 is: 87,864.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,432.36 : 153,760.38 = 63,676.48 : x
  2. Step 2: Convert to fraction form
    111,432.36/153,760.38 = 63,676.48/x
  3. Step 3: Cross multiply
    111,432.36x = 153,760.38 × 63,676.48
  4. Step 4: Simplify right side
    111,432.36x = 9,790,919,761.86
  5. Step 5: Solve for x
    x = 9,790,919,761.86/111,432.36
  6. Step 6: Final answer
    x = 87,864.24

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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.