Home / 115,218.51-172,562.23-111,229.12

Finding the Fourth Proportional to 115,218.51, 172,562.23 and 111,229.12

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Solution

The fourth proportional to 115,218.51, 172,562.23 and 111,229.12 is: 166,587.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,218.51 : 172,562.23 = 111,229.12 : x
  2. Step 2: Convert to fraction form
    115,218.51/172,562.23 = 111,229.12/x
  3. Step 3: Cross multiply
    115,218.51x = 172,562.23 × 111,229.12
  4. Step 4: Simplify right side
    115,218.51x = 19,193,944,988.14
  5. Step 5: Solve for x
    x = 19,193,944,988.14/115,218.51
  6. Step 6: Final answer
    x = 166,587.34

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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.