Home / 158,074.26-218,138.02-86,452.75

Finding the Fourth Proportional to 158,074.26, 218,138.02 and 86,452.75

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Solution

The fourth proportional to 158,074.26, 218,138.02 and 86,452.75 is: 119,302.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,074.26 : 218,138.02 = 86,452.75 : x
  2. Step 2: Convert to fraction form
    158,074.26/218,138.02 = 86,452.75/x
  3. Step 3: Cross multiply
    158,074.26x = 218,138.02 × 86,452.75
  4. Step 4: Simplify right side
    158,074.26x = 18,858,631,708.56
  5. Step 5: Solve for x
    x = 18,858,631,708.56/158,074.26
  6. Step 6: Final answer
    x = 119,302.36

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1.5x scale

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.