Home / 114,428.45-158,040.57-78,067.49

Finding the Fourth Proportional to 114,428.45, 158,040.57 and 78,067.49

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Solution

The fourth proportional to 114,428.45, 158,040.57 and 78,067.49 is: 107,821.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,428.45 : 158,040.57 = 78,067.49 : x
  2. Step 2: Convert to fraction form
    114,428.45/158,040.57 = 78,067.49/x
  3. Step 3: Cross multiply
    114,428.45x = 158,040.57 × 78,067.49
  4. Step 4: Simplify right side
    114,428.45x = 12,337,829,827.87
  5. Step 5: Solve for x
    x = 12,337,829,827.87/114,428.45
  6. Step 6: Final answer
    x = 107,821.35

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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.