Home / 115,045.92-172,519.47-40,143.60

Finding the Fourth Proportional to 115,045.92, 172,519.47 and 40,143.60

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Solution

The fourth proportional to 115,045.92, 172,519.47 and 40,143.60 is: 60,198.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,045.92 : 172,519.47 = 40,143.60 : x
  2. Step 2: Convert to fraction form
    115,045.92/172,519.47 = 40,143.60/x
  3. Step 3: Cross multiply
    115,045.92x = 172,519.47 × 40,143.60
  4. Step 4: Simplify right side
    115,045.92x = 6,925,552,595.89
  5. Step 5: Solve for x
    x = 6,925,552,595.89/115,045.92
  6. Step 6: Final answer
    x = 60,198.16

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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.