Home / 107,354.12-148,121.94-64,340.42

Finding the Fourth Proportional to 107,354.12, 148,121.94 and 64,340.42

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Solution

The fourth proportional to 107,354.12, 148,121.94 and 64,340.42 is: 88,773.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,354.12 : 148,121.94 = 64,340.42 : x
  2. Step 2: Convert to fraction form
    107,354.12/148,121.94 = 64,340.42/x
  3. Step 3: Cross multiply
    107,354.12x = 148,121.94 × 64,340.42
  4. Step 4: Simplify right side
    107,354.12x = 9,530,227,830.81
  5. Step 5: Solve for x
    x = 9,530,227,830.81/107,354.12
  6. Step 6: Final answer
    x = 88,773.75

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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.