Home / 129,737.28-179,022.24-73,145.28

Finding the Fourth Proportional to 129,737.28, 179,022.24 and 73,145.28

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Solution

The fourth proportional to 129,737.28, 179,022.24 and 73,145.28 is: 100,931.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,737.28 : 179,022.24 = 73,145.28 : x
  2. Step 2: Convert to fraction form
    129,737.28/179,022.24 = 73,145.28/x
  3. Step 3: Cross multiply
    129,737.28x = 179,022.24 × 73,145.28
  4. Step 4: Simplify right side
    129,737.28x = 13,094,631,871.03
  5. Step 5: Solve for x
    x = 13,094,631,871.03/129,737.28
  6. Step 6: Final answer
    x = 100,931.91

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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.