Home / 140,171.40-210,305.70-61,342.20

Finding the Fourth Proportional to 140,171.40, 210,305.70 and 61,342.20

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Solution

The fourth proportional to 140,171.40, 210,305.70 and 61,342.20 is: 92,034.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,171.40 : 210,305.70 = 61,342.20 : x
  2. Step 2: Convert to fraction form
    140,171.40/210,305.70 = 61,342.20/x
  3. Step 3: Cross multiply
    140,171.40x = 210,305.70 × 61,342.20
  4. Step 4: Simplify right side
    140,171.40x = 12,900,614,310.54
  5. Step 5: Solve for x
    x = 12,900,614,310.54/140,171.40
  6. Step 6: Final answer
    x = 92,034.57

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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.