Home / 127,923.20-191,625.60-72,454.40

Finding the Fourth Proportional to 127,923.20, 191,625.60 and 72,454.40

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Solution

The fourth proportional to 127,923.20, 191,625.60 and 72,454.40 is: 108,534.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,923.20 : 191,625.60 = 72,454.40 : x
  2. Step 2: Convert to fraction form
    127,923.20/191,625.60 = 72,454.40/x
  3. Step 3: Cross multiply
    127,923.20x = 191,625.60 × 72,454.40
  4. Step 4: Simplify right side
    127,923.20x = 13,884,117,872.64
  5. Step 5: Solve for x
    x = 13,884,117,872.64/127,923.20
  6. Step 6: Final answer
    x = 108,534.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.