Home / 102,046.17-140,825.40-56,107.75

Finding the Fourth Proportional to 102,046.17, 140,825.40 and 56,107.75

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Solution

The fourth proportional to 102,046.17, 140,825.40 and 56,107.75 is: 77,429.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,046.17 : 140,825.40 = 56,107.75 : x
  2. Step 2: Convert to fraction form
    102,046.17/140,825.40 = 56,107.75/x
  3. Step 3: Cross multiply
    102,046.17x = 140,825.40 × 56,107.75
  4. Step 4: Simplify right side
    102,046.17x = 7,901,396,336.85
  5. Step 5: Solve for x
    x = 7,901,396,336.85/102,046.17
  6. Step 6: Final answer
    x = 77,429.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.