Home / 129,832.28-179,136.99-76,106.92

Finding the Fourth Proportional to 129,832.28, 179,136.99 and 76,106.92

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Solution

The fourth proportional to 129,832.28, 179,136.99 and 76,106.92 is: 105,009.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,832.28 : 179,136.99 = 76,106.92 : x
  2. Step 2: Convert to fraction form
    129,832.28/179,136.99 = 76,106.92/x
  3. Step 3: Cross multiply
    129,832.28x = 179,136.99 × 76,106.92
  4. Step 4: Simplify right side
    129,832.28x = 13,633,563,671.29
  5. Step 5: Solve for x
    x = 13,633,563,671.29/129,832.28
  6. Step 6: Final answer
    x = 105,009.04

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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.