Home / 115,065.92-172,640.44-40,197.12

Finding the Fourth Proportional to 115,065.92, 172,640.44 and 40,197.12

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Solution

The fourth proportional to 115,065.92, 172,640.44 and 40,197.12 is: 60,310.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,065.92 : 172,640.44 = 40,197.12 : x
  2. Step 2: Convert to fraction form
    115,065.92/172,640.44 = 40,197.12/x
  3. Step 3: Cross multiply
    115,065.92x = 172,640.44 × 40,197.12
  4. Step 4: Simplify right side
    115,065.92x = 6,939,648,483.53
  5. Step 5: Solve for x
    x = 6,939,648,483.53/115,065.92
  6. Step 6: Final answer
    x = 60,310.20

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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.