Home / 126,139.11-174,071.03-68,779.41

Finding the Fourth Proportional to 126,139.11, 174,071.03 and 68,779.41

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Solution

The fourth proportional to 126,139.11, 174,071.03 and 68,779.41 is: 94,915.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,139.11 : 174,071.03 = 68,779.41 : x
  2. Step 2: Convert to fraction form
    126,139.11/174,071.03 = 68,779.41/x
  3. Step 3: Cross multiply
    126,139.11x = 174,071.03 × 68,779.41
  4. Step 4: Simplify right side
    126,139.11x = 11,972,502,723.98
  5. Step 5: Solve for x
    x = 11,972,502,723.98/126,139.11
  6. Step 6: Final answer
    x = 94,915.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.