Home / 98,800.20-148,200.30-90,635.40

Finding the Fourth Proportional to 98,800.20, 148,200.30 and 90,635.40

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Solution

The fourth proportional to 98,800.20, 148,200.30 and 90,635.40 is: 135,953.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,800.20 : 148,200.30 = 90,635.40 : x
  2. Step 2: Convert to fraction form
    98,800.20/148,200.30 = 90,635.40/x
  3. Step 3: Cross multiply
    98,800.20x = 148,200.30 × 90,635.40
  4. Step 4: Simplify right side
    98,800.20x = 13,432,193,470.62
  5. Step 5: Solve for x
    x = 13,432,193,470.62/98,800.20
  6. Step 6: Final answer
    x = 135,953.10

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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.