Home / 140,563.20-210,917.70-61,685.40

Finding the Fourth Proportional to 140,563.20, 210,917.70 and 61,685.40

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Solution

The fourth proportional to 140,563.20, 210,917.70 and 61,685.40 is: 92,560.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,563.20 : 210,917.70 = 61,685.40 : x
  2. Step 2: Convert to fraction form
    140,563.20/210,917.70 = 61,685.40/x
  3. Step 3: Cross multiply
    140,563.20x = 210,917.70 × 61,685.40
  4. Step 4: Simplify right side
    140,563.20x = 13,010,542,691.58
  5. Step 5: Solve for x
    x = 13,010,542,691.58/140,563.20
  6. Step 6: Final answer
    x = 92,560.09

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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.