Home / 140,387.85-210,559.50-45,620.28

Finding the Fourth Proportional to 140,387.85, 210,559.50 and 45,620.28

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Solution

The fourth proportional to 140,387.85, 210,559.50 and 45,620.28 is: 68,423.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,387.85 : 210,559.50 = 45,620.28 : x
  2. Step 2: Convert to fraction form
    140,387.85/210,559.50 = 45,620.28/x
  3. Step 3: Cross multiply
    140,387.85x = 210,559.50 × 45,620.28
  4. Step 4: Simplify right side
    140,387.85x = 9,605,783,346.66
  5. Step 5: Solve for x
    x = 9,605,783,346.66/140,387.85
  6. Step 6: Final answer
    x = 68,423.18

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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.