Home / 129,760.36-179,038.66-73,160.80

Finding the Fourth Proportional to 129,760.36, 179,038.66 and 73,160.80

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Solution

The fourth proportional to 129,760.36, 179,038.66 and 73,160.80 is: 100,944.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,760.36 : 179,038.66 = 73,160.80 : x
  2. Step 2: Convert to fraction form
    129,760.36/179,038.66 = 73,160.80/x
  3. Step 3: Cross multiply
    129,760.36x = 179,038.66 × 73,160.80
  4. Step 4: Simplify right side
    129,760.36x = 13,098,611,596.53
  5. Step 5: Solve for x
    x = 13,098,611,596.53/129,760.36
  6. Step 6: Final answer
    x = 100,944.63

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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.