Home / 107,782.32-148,739.76-62,469.12

Finding the Fourth Proportional to 107,782.32, 148,739.76 and 62,469.12

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Solution

The fourth proportional to 107,782.32, 148,739.76 and 62,469.12 is: 86,207.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,782.32 : 148,739.76 = 62,469.12 : x
  2. Step 2: Convert to fraction form
    107,782.32/148,739.76 = 62,469.12/x
  3. Step 3: Cross multiply
    107,782.32x = 148,739.76 × 62,469.12
  4. Step 4: Simplify right side
    107,782.32x = 9,291,641,916.21
  5. Step 5: Solve for x
    x = 9,291,641,916.21/107,782.32
  6. Step 6: Final answer
    x = 86,207.48

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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.