Home / 115,079.28-172,660.32-40,210.44

Finding the Fourth Proportional to 115,079.28, 172,660.32 and 40,210.44

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Solution

The fourth proportional to 115,079.28, 172,660.32 and 40,210.44 is: 60,330.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,079.28 : 172,660.32 = 40,210.44 : x
  2. Step 2: Convert to fraction form
    115,079.28/172,660.32 = 40,210.44/x
  3. Step 3: Cross multiply
    115,079.28x = 172,660.32 × 40,210.44
  4. Step 4: Simplify right side
    115,079.28x = 6,942,747,437.74
  5. Step 5: Solve for x
    x = 6,942,747,437.74/115,079.28
  6. Step 6: Final answer
    x = 60,330.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.