Home / 140,187.40-210,149.30-69,082.60

Finding the Fourth Proportional to 140,187.40, 210,149.30 and 69,082.60

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Solution

The fourth proportional to 140,187.40, 210,149.30 and 69,082.60 is: 103,558.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,187.40 : 210,149.30 = 69,082.60 : x
  2. Step 2: Convert to fraction form
    140,187.40/210,149.30 = 69,082.60/x
  3. Step 3: Cross multiply
    140,187.40x = 210,149.30 × 69,082.60
  4. Step 4: Simplify right side
    140,187.40x = 14,517,660,032.18
  5. Step 5: Solve for x
    x = 14,517,660,032.18/140,187.40
  6. Step 6: Final answer
    x = 103,558.95

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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.