Home / 140,995.20-211,441.60-70,851.20

Finding the Fourth Proportional to 140,995.20, 211,441.60 and 70,851.20

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Solution

The fourth proportional to 140,995.20, 211,441.60 and 70,851.20 is: 106,251.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,995.20 : 211,441.60 = 70,851.20 : x
  2. Step 2: Convert to fraction form
    140,995.20/211,441.60 = 70,851.20/x
  3. Step 3: Cross multiply
    140,995.20x = 211,441.60 × 70,851.20
  4. Step 4: Simplify right side
    140,995.20x = 14,980,891,089.92
  5. Step 5: Solve for x
    x = 14,980,891,089.92/140,995.20
  6. Step 6: Final answer
    x = 106,251.07

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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.