Home / 155,281.97-214,287.83-87,299.25

Finding the Fourth Proportional to 155,281.97, 214,287.83 and 87,299.25

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Solution

The fourth proportional to 155,281.97, 214,287.83 and 87,299.25 is: 120,472.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,281.97 : 214,287.83 = 87,299.25 : x
  2. Step 2: Convert to fraction form
    155,281.97/214,287.83 = 87,299.25/x
  3. Step 3: Cross multiply
    155,281.97x = 214,287.83 × 87,299.25
  4. Step 4: Simplify right side
    155,281.97x = 18,707,165,930.42
  5. Step 5: Solve for x
    x = 18,707,165,930.42/155,281.97
  6. Step 6: Final answer
    x = 120,472.23

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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.