Home / 111,019.32-153,169.38-63,238.86

Finding the Fourth Proportional to 111,019.32, 153,169.38 and 63,238.86

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Solution

The fourth proportional to 111,019.32, 153,169.38 and 63,238.86 is: 87,248.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,019.32 : 153,169.38 = 63,238.86 : x
  2. Step 2: Convert to fraction form
    111,019.32/153,169.38 = 63,238.86/x
  3. Step 3: Cross multiply
    111,019.32x = 153,169.38 × 63,238.86
  4. Step 4: Simplify right side
    111,019.32x = 9,686,256,978.11
  5. Step 5: Solve for x
    x = 9,686,256,978.11/111,019.32
  6. Step 6: Final answer
    x = 87,248.39

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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.