Home / 99,425.13-137,183.94-56,394.34

Finding the Fourth Proportional to 99,425.13, 137,183.94 and 56,394.34

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Solution

The fourth proportional to 99,425.13, 137,183.94 and 56,394.34 is: 77,811.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,425.13 : 137,183.94 = 56,394.34 : x
  2. Step 2: Convert to fraction form
    99,425.13/137,183.94 = 56,394.34/x
  3. Step 3: Cross multiply
    99,425.13x = 137,183.94 × 56,394.34
  4. Step 4: Simplify right side
    99,425.13x = 7,736,397,754.90
  5. Step 5: Solve for x
    x = 7,736,397,754.90/99,425.13
  6. Step 6: Final answer
    x = 77,811.29

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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.