Home / 100,766.12-150,260.18-99,866.75

Finding the Fourth Proportional to 100,766.12, 150,260.18 and 99,866.75

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Solution

The fourth proportional to 100,766.12, 150,260.18 and 99,866.75 is: 148,919.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,766.12 : 150,260.18 = 99,866.75 : x
  2. Step 2: Convert to fraction form
    100,766.12/150,260.18 = 99,866.75/x
  3. Step 3: Cross multiply
    100,766.12x = 150,260.18 × 99,866.75
  4. Step 4: Simplify right side
    100,766.12x = 15,005,994,580.38
  5. Step 5: Solve for x
    x = 15,005,994,580.38/100,766.12
  6. Step 6: Final answer
    x = 148,919.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.