Home / 204,432.30-306,539.10-85,969.80

Finding the Fourth Proportional to 204,432.30, 306,539.10 and 85,969.80

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Solution

The fourth proportional to 204,432.30, 306,539.10 and 85,969.80 is: 128,908.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,432.30 : 306,539.10 = 85,969.80 : x
  2. Step 2: Convert to fraction form
    204,432.30/306,539.10 = 85,969.80/x
  3. Step 3: Cross multiply
    204,432.30x = 306,539.10 × 85,969.80
  4. Step 4: Simplify right side
    204,432.30x = 26,353,105,119.18
  5. Step 5: Solve for x
    x = 26,353,105,119.18/204,432.30
  6. Step 6: Final answer
    x = 128,908.72

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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.