Home / 106,289.35-146,689.67-79,385.17

Finding the Fourth Proportional to 106,289.35, 146,689.67 and 79,385.17

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Solution

The fourth proportional to 106,289.35, 146,689.67 and 79,385.17 is: 109,559.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,289.35 : 146,689.67 = 79,385.17 : x
  2. Step 2: Convert to fraction form
    106,289.35/146,689.67 = 79,385.17/x
  3. Step 3: Cross multiply
    106,289.35x = 146,689.67 × 79,385.17
  4. Step 4: Simplify right side
    106,289.35x = 11,644,983,993.27
  5. Step 5: Solve for x
    x = 11,644,983,993.27/106,289.35
  6. Step 6: Final answer
    x = 109,559.27

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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.