Home / 107,625.60-148,442.40-65,131.20

Finding the Fourth Proportional to 107,625.60, 148,442.40 and 65,131.20

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Solution

The fourth proportional to 107,625.60, 148,442.40 and 65,131.20 is: 89,832.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,625.60 : 148,442.40 = 65,131.20 : x
  2. Step 2: Convert to fraction form
    107,625.60/148,442.40 = 65,131.20/x
  3. Step 3: Cross multiply
    107,625.60x = 148,442.40 × 65,131.20
  4. Step 4: Simplify right side
    107,625.60x = 9,668,231,642.88
  5. Step 5: Solve for x
    x = 9,668,231,642.88/107,625.60
  6. Step 6: Final answer
    x = 89,832.08

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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.