Home / 107,865.24-148,784.55-71,565.90

Finding the Fourth Proportional to 107,865.24, 148,784.55 and 71,565.90

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Solution

The fourth proportional to 107,865.24, 148,784.55 and 71,565.90 is: 98,714.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,865.24 : 148,784.55 = 71,565.90 : x
  2. Step 2: Convert to fraction form
    107,865.24/148,784.55 = 71,565.90/x
  3. Step 3: Cross multiply
    107,865.24x = 148,784.55 × 71,565.90
  4. Step 4: Simplify right side
    107,865.24x = 10,647,900,226.85
  5. Step 5: Solve for x
    x = 10,647,900,226.85/107,865.24
  6. Step 6: Final answer
    x = 98,714.84

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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.