Home / 99,310.80-148,966.20-98,619.60

Finding the Fourth Proportional to 99,310.80, 148,966.20 and 98,619.60

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Solution

The fourth proportional to 99,310.80, 148,966.20 and 98,619.60 is: 147,929.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,310.80 : 148,966.20 = 98,619.60 : x
  2. Step 2: Convert to fraction form
    99,310.80/148,966.20 = 98,619.60/x
  3. Step 3: Cross multiply
    99,310.80x = 148,966.20 × 98,619.60
  4. Step 4: Simplify right side
    99,310.80x = 14,690,987,057.52
  5. Step 5: Solve for x
    x = 14,690,987,057.52/99,310.80
  6. Step 6: Final answer
    x = 147,929.40

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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.