Home / 111,023.32-153,174.90-63,242.86

Finding the Fourth Proportional to 111,023.32, 153,174.90 and 63,242.86

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Solution

The fourth proportional to 111,023.32, 153,174.90 and 63,242.86 is: 87,253.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,023.32 : 153,174.90 = 63,242.86 : x
  2. Step 2: Convert to fraction form
    111,023.32/153,174.90 = 63,242.86/x
  3. Step 3: Cross multiply
    111,023.32x = 153,174.90 × 63,242.86
  4. Step 4: Simplify right side
    111,023.32x = 9,687,218,756.21
  5. Step 5: Solve for x
    x = 9,687,218,756.21/111,023.32
  6. Step 6: Final answer
    x = 87,253.91

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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.