Home / 107,747.15-148,619.81-67,390.85

Finding the Fourth Proportional to 107,747.15, 148,619.81 and 67,390.85

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Solution

The fourth proportional to 107,747.15, 148,619.81 and 67,390.85 is: 92,954.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,747.15 : 148,619.81 = 67,390.85 : x
  2. Step 2: Convert to fraction form
    107,747.15/148,619.81 = 67,390.85/x
  3. Step 3: Cross multiply
    107,747.15x = 148,619.81 × 67,390.85
  4. Step 4: Simplify right side
    107,747.15x = 10,015,614,748.12
  5. Step 5: Solve for x
    x = 10,015,614,748.12/107,747.15
  6. Step 6: Final answer
    x = 92,954.80

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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.