Home / 124,434.11-186,651.12-30,939.86

Finding the Fourth Proportional to 124,434.11, 186,651.12 and 30,939.86

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Solution

The fourth proportional to 124,434.11, 186,651.12 and 30,939.86 is: 46,409.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,434.11 : 186,651.12 = 30,939.86 : x
  2. Step 2: Convert to fraction form
    124,434.11/186,651.12 = 30,939.86/x
  3. Step 3: Cross multiply
    124,434.11x = 186,651.12 × 30,939.86
  4. Step 4: Simplify right side
    124,434.11x = 5,774,959,521.64
  5. Step 5: Solve for x
    x = 5,774,959,521.64/124,434.11
  6. Step 6: Final answer
    x = 46,409.78

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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.