Home / 143,149.25-197,564.19-86,561.03

Finding the Fourth Proportional to 143,149.25, 197,564.19 and 86,561.03

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Solution

The fourth proportional to 143,149.25, 197,564.19 and 86,561.03 is: 119,465.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,149.25 : 197,564.19 = 86,561.03 : x
  2. Step 2: Convert to fraction form
    143,149.25/197,564.19 = 86,561.03/x
  3. Step 3: Cross multiply
    143,149.25x = 197,564.19 × 86,561.03
  4. Step 4: Simplify right side
    143,149.25x = 17,101,359,777.52
  5. Step 5: Solve for x
    x = 17,101,359,777.52/143,149.25
  6. Step 6: Final answer
    x = 119,465.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.