Home / 124,019.20-171,149.94-76,245.40

Finding the Fourth Proportional to 124,019.20, 171,149.94 and 76,245.40

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Solution

The fourth proportional to 124,019.20, 171,149.94 and 76,245.40 is: 105,220.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,019.20 : 171,149.94 = 76,245.40 : x
  2. Step 2: Convert to fraction form
    124,019.20/171,149.94 = 76,245.40/x
  3. Step 3: Cross multiply
    124,019.20x = 171,149.94 × 76,245.40
  4. Step 4: Simplify right side
    124,019.20x = 13,049,395,635.28
  5. Step 5: Solve for x
    x = 13,049,395,635.28/124,019.20
  6. Step 6: Final answer
    x = 105,220.77

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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.