Home / 129,819.04-179,150.20-70,203.04

Finding the Fourth Proportional to 129,819.04, 179,150.20 and 70,203.04

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Solution

The fourth proportional to 129,819.04, 179,150.20 and 70,203.04 is: 96,880.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,819.04 : 179,150.20 = 70,203.04 : x
  2. Step 2: Convert to fraction form
    129,819.04/179,150.20 = 70,203.04/x
  3. Step 3: Cross multiply
    129,819.04x = 179,150.20 × 70,203.04
  4. Step 4: Simplify right side
    129,819.04x = 12,576,888,656.61
  5. Step 5: Solve for x
    x = 12,576,888,656.61/129,819.04
  6. Step 6: Final answer
    x = 96,880.15

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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.