Home / 106,289.60-146,690.01-79,385.42

Finding the Fourth Proportional to 106,289.60, 146,690.01 and 79,385.42

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Solution

The fourth proportional to 106,289.60, 146,690.01 and 79,385.42 is: 109,559.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,289.60 : 146,690.01 = 79,385.42 : x
  2. Step 2: Convert to fraction form
    106,289.60/146,690.01 = 79,385.42/x
  3. Step 3: Cross multiply
    106,289.60x = 146,690.01 × 79,385.42
  4. Step 4: Simplify right side
    106,289.60x = 11,645,048,053.65
  5. Step 5: Solve for x
    x = 11,645,048,053.65/106,289.60
  6. Step 6: Final answer
    x = 109,559.62

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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.