Home / 118,372.24-163,305.33-87,401.70

Finding the Fourth Proportional to 118,372.24, 163,305.33 and 87,401.70

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Solution

The fourth proportional to 118,372.24, 163,305.33 and 87,401.70 is: 120,578.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,372.24 : 163,305.33 = 87,401.70 : x
  2. Step 2: Convert to fraction form
    118,372.24/163,305.33 = 87,401.70/x
  3. Step 3: Cross multiply
    118,372.24x = 163,305.33 × 87,401.70
  4. Step 4: Simplify right side
    118,372.24x = 14,273,163,432.32
  5. Step 5: Solve for x
    x = 14,273,163,432.32/118,372.24
  6. Step 6: Final answer
    x = 120,578.64

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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.