Home / 126,739.20-190,108.80-64,531.20

Finding the Fourth Proportional to 126,739.20, 190,108.80 and 64,531.20

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Solution

The fourth proportional to 126,739.20, 190,108.80 and 64,531.20 is: 96,796.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,739.20 : 190,108.80 = 64,531.20 : x
  2. Step 2: Convert to fraction form
    126,739.20/190,108.80 = 64,531.20/x
  3. Step 3: Cross multiply
    126,739.20x = 190,108.80 × 64,531.20
  4. Step 4: Simplify right side
    126,739.20x = 12,267,948,994.56
  5. Step 5: Solve for x
    x = 12,267,948,994.56/126,739.20
  6. Step 6: Final answer
    x = 96,796.80

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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.