Home / 127,612.20-191,204.46-90,110.02

Finding the Fourth Proportional to 127,612.20, 191,204.46 and 90,110.02

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Solution

The fourth proportional to 127,612.20, 191,204.46 and 90,110.02 is: 135,014.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,612.20 : 191,204.46 = 90,110.02 : x
  2. Step 2: Convert to fraction form
    127,612.20/191,204.46 = 90,110.02/x
  3. Step 3: Cross multiply
    127,612.20x = 191,204.46 × 90,110.02
  4. Step 4: Simplify right side
    127,612.20x = 17,229,437,714.69
  5. Step 5: Solve for x
    x = 17,229,437,714.69/127,612.20
  6. Step 6: Final answer
    x = 135,014.03

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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.