Home / 155,414.67-214,452.07-87,429.35

Finding the Fourth Proportional to 155,414.67, 214,452.07 and 87,429.35

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Solution

The fourth proportional to 155,414.67, 214,452.07 and 87,429.35 is: 120,641.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,414.67 : 214,452.07 = 87,429.35 : x
  2. Step 2: Convert to fraction form
    155,414.67/214,452.07 = 87,429.35/x
  3. Step 3: Cross multiply
    155,414.67x = 214,452.07 × 87,429.35
  4. Step 4: Simplify right side
    155,414.67x = 18,749,405,086.25
  5. Step 5: Solve for x
    x = 18,749,405,086.25/155,414.67
  6. Step 6: Final answer
    x = 120,641.15

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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.