Home / 146,011.20-218,965.60-75,867.20

Finding the Fourth Proportional to 146,011.20, 218,965.60 and 75,867.20

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Solution

The fourth proportional to 146,011.20, 218,965.60 and 75,867.20 is: 113,774.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,011.20 : 218,965.60 = 75,867.20 : x
  2. Step 2: Convert to fraction form
    146,011.20/218,965.60 = 75,867.20/x
  3. Step 3: Cross multiply
    146,011.20x = 218,965.60 × 75,867.20
  4. Step 4: Simplify right side
    146,011.20x = 16,612,306,968.32
  5. Step 5: Solve for x
    x = 16,612,306,968.32/146,011.20
  6. Step 6: Final answer
    x = 113,774.20

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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.