Home / 158,561.25-218,821.14-86,944.02

Finding the Fourth Proportional to 158,561.25, 218,821.14 and 86,944.02

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Solution

The fourth proportional to 158,561.25, 218,821.14 and 86,944.02 is: 119,986.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,561.25 : 218,821.14 = 86,944.02 : x
  2. Step 2: Convert to fraction form
    158,561.25/218,821.14 = 86,944.02/x
  3. Step 3: Cross multiply
    158,561.25x = 218,821.14 × 86,944.02
  4. Step 4: Simplify right side
    158,561.25x = 19,025,189,572.58
  5. Step 5: Solve for x
    x = 19,025,189,572.58/158,561.25
  6. Step 6: Final answer
    x = 119,986.37

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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.