Home / 129,761.16-179,070.66-70,145.16

Finding the Fourth Proportional to 129,761.16, 179,070.66 and 70,145.16

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Solution

The fourth proportional to 129,761.16, 179,070.66 and 70,145.16 is: 96,800.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,761.16 : 179,070.66 = 70,145.16 : x
  2. Step 2: Convert to fraction form
    129,761.16/179,070.66 = 70,145.16/x
  3. Step 3: Cross multiply
    129,761.16x = 179,070.66 × 70,145.16
  4. Step 4: Simplify right side
    129,761.16x = 12,560,940,097.01
  5. Step 5: Solve for x
    x = 12,560,940,097.01/129,761.16
  6. Step 6: Final answer
    x = 96,800.46

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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.