Home / 106,305.60-146,712.08-79,401.44

Finding the Fourth Proportional to 106,305.60, 146,712.08 and 79,401.44

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Solution

The fourth proportional to 106,305.60, 146,712.08 and 79,401.44 is: 109,581.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,305.60 : 146,712.08 = 79,401.44 : x
  2. Step 2: Convert to fraction form
    106,305.60/146,712.08 = 79,401.44/x
  3. Step 3: Cross multiply
    106,305.60x = 146,712.08 × 79,401.44
  4. Step 4: Simplify right side
    106,305.60x = 11,649,150,417.40
  5. Step 5: Solve for x
    x = 11,649,150,417.40/106,305.60
  6. Step 6: Final answer
    x = 109,581.72

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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.