Home / 126,949.60-190,432.44-42,703.12

Finding the Fourth Proportional to 126,949.60, 190,432.44 and 42,703.12

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Solution

The fourth proportional to 126,949.60, 190,432.44 and 42,703.12 is: 64,057.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,949.60 : 190,432.44 = 42,703.12 : x
  2. Step 2: Convert to fraction form
    126,949.60/190,432.44 = 42,703.12/x
  3. Step 3: Cross multiply
    126,949.60x = 190,432.44 × 42,703.12
  4. Step 4: Simplify right side
    126,949.60x = 8,132,059,337.21
  5. Step 5: Solve for x
    x = 8,132,059,337.21/126,949.60
  6. Step 6: Final answer
    x = 64,057.38

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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.