Home / 102,046.28-140,825.55-56,107.86

Finding the Fourth Proportional to 102,046.28, 140,825.55 and 56,107.86

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Solution

The fourth proportional to 102,046.28, 140,825.55 and 56,107.86 is: 77,429.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,046.28 : 140,825.55 = 56,107.86 : x
  2. Step 2: Convert to fraction form
    102,046.28/140,825.55 = 56,107.86/x
  3. Step 3: Cross multiply
    102,046.28x = 140,825.55 × 56,107.86
  4. Step 4: Simplify right side
    102,046.28x = 7,901,420,243.82
  5. Step 5: Solve for x
    x = 7,901,420,243.82/102,046.28
  6. Step 6: Final answer
    x = 77,429.77

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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.