Home / 221,434.93-305,604.73-124,641.75

Finding the Fourth Proportional to 221,434.93, 305,604.73 and 124,641.75

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Solution

The fourth proportional to 221,434.93, 305,604.73 and 124,641.75 is: 172,019.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,434.93 : 305,604.73 = 124,641.75 : x
  2. Step 2: Convert to fraction form
    221,434.93/305,604.73 = 124,641.75/x
  3. Step 3: Cross multiply
    221,434.93x = 305,604.73 × 124,641.75
  4. Step 4: Simplify right side
    221,434.93x = 38,091,109,657.30
  5. Step 5: Solve for x
    x = 38,091,109,657.30/221,434.93
  6. Step 6: Final answer
    x = 172,019.43

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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.