Home / 69,217.40-103,826.10-67,905.20

Finding the Fourth Proportional to 69,217.40, 103,826.10 and 67,905.20

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Solution

The fourth proportional to 69,217.40, 103,826.10 and 67,905.20 is: 101,857.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,217.40 : 103,826.10 = 67,905.20 : x
  2. Step 2: Convert to fraction form
    69,217.40/103,826.10 = 67,905.20/x
  3. Step 3: Cross multiply
    69,217.40x = 103,826.10 × 67,905.20
  4. Step 4: Simplify right side
    69,217.40x = 7,050,332,085.72
  5. Step 5: Solve for x
    x = 7,050,332,085.72/69,217.40
  6. Step 6: Final answer
    x = 101,857.80

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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.