Home / 126,872.70-190,309.05-63,668.40

Finding the Fourth Proportional to 126,872.70, 190,309.05 and 63,668.40

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Solution

The fourth proportional to 126,872.70, 190,309.05 and 63,668.40 is: 95,502.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,872.70 : 190,309.05 = 63,668.40 : x
  2. Step 2: Convert to fraction form
    126,872.70/190,309.05 = 63,668.40/x
  3. Step 3: Cross multiply
    126,872.70x = 190,309.05 × 63,668.40
  4. Step 4: Simplify right side
    126,872.70x = 12,116,672,719.02
  5. Step 5: Solve for x
    x = 12,116,672,719.02/126,872.70
  6. Step 6: Final answer
    x = 95,502.60

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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.