Home / 106,388.64-146,823.84-61,074

Finding the Fourth Proportional to 106,388.64, 146,823.84 and 61,074

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Solution

The fourth proportional to 106,388.64, 146,823.84 and 61,074 is: 84,286.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,388.64 : 146,823.84 = 61,074 : x
  2. Step 2: Convert to fraction form
    106,388.64/146,823.84 = 61,074/x
  3. Step 3: Cross multiply
    106,388.64x = 146,823.84 × 61,074
  4. Step 4: Simplify right side
    106,388.64x = 8,967,119,204.16
  5. Step 5: Solve for x
    x = 8,967,119,204.16/106,388.64
  6. Step 6: Final answer
    x = 84,286.44

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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.