Home / 140,232.87-210,182.04-80,943.30

Finding the Fourth Proportional to 140,232.87, 210,182.04 and 80,943.30

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Solution

The fourth proportional to 140,232.87, 210,182.04 and 80,943.30 is: 121,318.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,232.87 : 210,182.04 = 80,943.30 : x
  2. Step 2: Convert to fraction form
    140,232.87/210,182.04 = 80,943.30/x
  3. Step 3: Cross multiply
    140,232.87x = 210,182.04 × 80,943.30
  4. Step 4: Simplify right side
    140,232.87x = 17,012,827,918.33
  5. Step 5: Solve for x
    x = 17,012,827,918.33/140,232.87
  6. Step 6: Final answer
    x = 121,318.40

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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.