Home / 106,078.12-146,388.64-57,680.08

Finding the Fourth Proportional to 106,078.12, 146,388.64 and 57,680.08

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Solution

The fourth proportional to 106,078.12, 146,388.64 and 57,680.08 is: 79,598.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,078.12 : 146,388.64 = 57,680.08 : x
  2. Step 2: Convert to fraction form
    106,078.12/146,388.64 = 57,680.08/x
  3. Step 3: Cross multiply
    106,078.12x = 146,388.64 × 57,680.08
  4. Step 4: Simplify right side
    106,078.12x = 8,443,707,734.35
  5. Step 5: Solve for x
    x = 8,443,707,734.35/106,078.12
  6. Step 6: Final answer
    x = 79,598.96

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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.