Home / 129,731.04-179,029.04-70,115.04

Finding the Fourth Proportional to 129,731.04, 179,029.04 and 70,115.04

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Solution

The fourth proportional to 129,731.04, 179,029.04 and 70,115.04 is: 96,758.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,731.04 : 179,029.04 = 70,115.04 : x
  2. Step 2: Convert to fraction form
    129,731.04/179,029.04 = 70,115.04/x
  3. Step 3: Cross multiply
    129,731.04x = 179,029.04 × 70,115.04
  4. Step 4: Simplify right side
    129,731.04x = 12,552,628,300.76
  5. Step 5: Solve for x
    x = 12,552,628,300.76/129,731.04
  6. Step 6: Final answer
    x = 96,758.87

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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.