Home / 140,656.74-210,839.31-87,945.18

Finding the Fourth Proportional to 140,656.74, 210,839.31 and 87,945.18

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Solution

The fourth proportional to 140,656.74, 210,839.31 and 87,945.18 is: 131,826.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,656.74 : 210,839.31 = 87,945.18 : x
  2. Step 2: Convert to fraction form
    140,656.74/210,839.31 = 87,945.18/x
  3. Step 3: Cross multiply
    140,656.74x = 210,839.31 × 87,945.18
  4. Step 4: Simplify right side
    140,656.74x = 18,542,301,069.03
  5. Step 5: Solve for x
    x = 18,542,301,069.03/140,656.74
  6. Step 6: Final answer
    x = 131,826.61

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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.