Home / 142,816.55-214,278.08-76,219.65

Finding the Fourth Proportional to 142,816.55, 214,278.08 and 76,219.65

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Solution

The fourth proportional to 142,816.55, 214,278.08 and 76,219.65 is: 114,357.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,816.55 : 214,278.08 = 76,219.65 : x
  2. Step 2: Convert to fraction form
    142,816.55/214,278.08 = 76,219.65/x
  3. Step 3: Cross multiply
    142,816.55x = 214,278.08 × 76,219.65
  4. Step 4: Simplify right side
    142,816.55x = 16,332,199,879.17
  5. Step 5: Solve for x
    x = 16,332,199,879.17/142,816.55
  6. Step 6: Final answer
    x = 114,357.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.