Home / 194,395.20-291,632.64-74,443.68

Finding the Fourth Proportional to 194,395.20, 291,632.64 and 74,443.68

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Solution

The fourth proportional to 194,395.20, 291,632.64 and 74,443.68 is: 111,680.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,395.20 : 291,632.64 = 74,443.68 : x
  2. Step 2: Convert to fraction form
    194,395.20/291,632.64 = 74,443.68/x
  3. Step 3: Cross multiply
    194,395.20x = 291,632.64 × 74,443.68
  4. Step 4: Simplify right side
    194,395.20x = 21,710,206,929.72
  5. Step 5: Solve for x
    x = 21,710,206,929.72/194,395.20
  6. Step 6: Final answer
    x = 111,680.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.