Home / 129,949.21-179,329.89-70,333.21

Finding the Fourth Proportional to 129,949.21, 179,329.89 and 70,333.21

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Solution

The fourth proportional to 129,949.21, 179,329.89 and 70,333.21 is: 97,059.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,949.21 : 179,329.89 = 70,333.21 : x
  2. Step 2: Convert to fraction form
    129,949.21/179,329.89 = 70,333.21/x
  3. Step 3: Cross multiply
    129,949.21x = 179,329.89 × 70,333.21
  4. Step 4: Simplify right side
    129,949.21x = 12,612,846,812.65
  5. Step 5: Solve for x
    x = 12,612,846,812.65/129,949.21
  6. Step 6: Final answer
    x = 97,059.82

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1.5x scale

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.