Home / 126,728.20-190,092.30-64,520.20

Finding the Fourth Proportional to 126,728.20, 190,092.30 and 64,520.20

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Solution

The fourth proportional to 126,728.20, 190,092.30 and 64,520.20 is: 96,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,728.20 : 190,092.30 = 64,520.20 : x
  2. Step 2: Convert to fraction form
    126,728.20/190,092.30 = 64,520.20/x
  3. Step 3: Cross multiply
    126,728.20x = 190,092.30 × 64,520.20
  4. Step 4: Simplify right side
    126,728.20x = 12,264,793,214.46
  5. Step 5: Solve for x
    x = 12,264,793,214.46/126,728.20
  6. Step 6: Final answer
    x = 96,780.30

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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.