Home / 221,113.43-305,147.33-124,347.72

Finding the Fourth Proportional to 221,113.43, 305,147.33 and 124,347.72

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Solution

The fourth proportional to 221,113.43, 305,147.33 and 124,347.72 is: 171,605.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,113.43 : 305,147.33 = 124,347.72 : x
  2. Step 2: Convert to fraction form
    221,113.43/305,147.33 = 124,347.72/x
  3. Step 3: Cross multiply
    221,113.43x = 305,147.33 × 124,347.72
  4. Step 4: Simplify right side
    221,113.43x = 37,944,374,127.85
  5. Step 5: Solve for x
    x = 37,944,374,127.85/221,113.43
  6. Step 6: Final answer
    x = 171,605.93

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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.