Home / 140,230.80-210,346.20-84,243.60

Finding the Fourth Proportional to 140,230.80, 210,346.20 and 84,243.60

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Solution

The fourth proportional to 140,230.80, 210,346.20 and 84,243.60 is: 126,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,230.80 : 210,346.20 = 84,243.60 : x
  2. Step 2: Convert to fraction form
    140,230.80/210,346.20 = 84,243.60/x
  3. Step 3: Cross multiply
    140,230.80x = 210,346.20 × 84,243.60
  4. Step 4: Simplify right side
    140,230.80x = 17,720,321,134.32
  5. Step 5: Solve for x
    x = 17,720,321,134.32/140,230.80
  6. Step 6: Final answer
    x = 126,365.40

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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.