Home / 126,872.16-190,311.34-42,633.54

Finding the Fourth Proportional to 126,872.16, 190,311.34 and 42,633.54

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Solution

The fourth proportional to 126,872.16, 190,311.34 and 42,633.54 is: 63,951.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,872.16 : 190,311.34 = 42,633.54 : x
  2. Step 2: Convert to fraction form
    126,872.16/190,311.34 = 42,633.54/x
  3. Step 3: Cross multiply
    126,872.16x = 190,311.34 × 42,633.54
  4. Step 4: Simplify right side
    126,872.16x = 8,113,646,126.34
  5. Step 5: Solve for x
    x = 8,113,646,126.34/126,872.16
  6. Step 6: Final answer
    x = 63,951.35

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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.