Home / 129,761.66-179,071.36-70,145.66

Finding the Fourth Proportional to 129,761.66, 179,071.36 and 70,145.66

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Solution

The fourth proportional to 129,761.66, 179,071.36 and 70,145.66 is: 96,801.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,761.66 : 179,071.36 = 70,145.66 : x
  2. Step 2: Convert to fraction form
    129,761.66/179,071.36 = 70,145.66/x
  3. Step 3: Cross multiply
    129,761.66x = 179,071.36 × 70,145.66
  4. Step 4: Simplify right side
    129,761.66x = 12,561,078,734.30
  5. Step 5: Solve for x
    x = 12,561,078,734.30/129,761.66
  6. Step 6: Final answer
    x = 96,801.16

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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.