Home / 107,445.15-148,228.38-67,131.45

Finding the Fourth Proportional to 107,445.15, 148,228.38 and 67,131.45

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Solution

The fourth proportional to 107,445.15, 148,228.38 and 67,131.45 is: 92,612.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,445.15 : 148,228.38 = 67,131.45 : x
  2. Step 2: Convert to fraction form
    107,445.15/148,228.38 = 67,131.45/x
  3. Step 3: Cross multiply
    107,445.15x = 148,228.38 × 67,131.45
  4. Step 4: Simplify right side
    107,445.15x = 9,950,786,080.55
  5. Step 5: Solve for x
    x = 9,950,786,080.55/107,445.15
  6. Step 6: Final answer
    x = 92,612.71

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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.