Home / 115,055-172,333.21-55,766.64

Finding the Fourth Proportional to 115,055, 172,333.21 and 55,766.64

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Solution

The fourth proportional to 115,055, 172,333.21 and 55,766.64 is: 83,529.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,055 : 172,333.21 = 55,766.64 : x
  2. Step 2: Convert to fraction form
    115,055/172,333.21 = 55,766.64/x
  3. Step 3: Cross multiply
    115,055x = 172,333.21 × 55,766.64
  4. Step 4: Simplify right side
    115,055x = 9,610,444,082.11
  5. Step 5: Solve for x
    x = 9,610,444,082.11/115,055
  6. Step 6: Final answer
    x = 83,529.13

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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.