Home / 145,842.20-218,763.30-82,856.60

Finding the Fourth Proportional to 145,842.20, 218,763.30 and 82,856.60

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Solution

The fourth proportional to 145,842.20, 218,763.30 and 82,856.60 is: 124,284.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,842.20 : 218,763.30 = 82,856.60 : x
  2. Step 2: Convert to fraction form
    145,842.20/218,763.30 = 82,856.60/x
  3. Step 3: Cross multiply
    145,842.20x = 218,763.30 × 82,856.60
  4. Step 4: Simplify right side
    145,842.20x = 18,125,983,242.78
  5. Step 5: Solve for x
    x = 18,125,983,242.78/145,842.20
  6. Step 6: Final answer
    x = 124,284.90

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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.