Home / 126,961.60-190,515.30-48,132.40

Finding the Fourth Proportional to 126,961.60, 190,515.30 and 48,132.40

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Solution

The fourth proportional to 126,961.60, 190,515.30 and 48,132.40 is: 72,226.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,961.60 : 190,515.30 = 48,132.40 : x
  2. Step 2: Convert to fraction form
    126,961.60/190,515.30 = 48,132.40/x
  3. Step 3: Cross multiply
    126,961.60x = 190,515.30 × 48,132.40
  4. Step 4: Simplify right side
    126,961.60x = 9,169,958,625.72
  5. Step 5: Solve for x
    x = 9,169,958,625.72/126,961.60
  6. Step 6: Final answer
    x = 72,226.24

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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.