Home / 155,281.85-214,287.66-87,299.12

Finding the Fourth Proportional to 155,281.85, 214,287.66 and 87,299.12

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Solution

The fourth proportional to 155,281.85, 214,287.66 and 87,299.12 is: 120,472.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,281.85 : 214,287.66 = 87,299.12 : x
  2. Step 2: Convert to fraction form
    155,281.85/214,287.66 = 87,299.12/x
  3. Step 3: Cross multiply
    155,281.85x = 214,287.66 × 87,299.12
  4. Step 4: Simplify right side
    155,281.85x = 18,707,124,144.86
  5. Step 5: Solve for x
    x = 18,707,124,144.86/155,281.85
  6. Step 6: Final answer
    x = 120,472.06

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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.