Home / 221,095.27-305,112.49-125,607.21

Finding the Fourth Proportional to 221,095.27, 305,112.49 and 125,607.21

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Solution

The fourth proportional to 221,095.27, 305,112.49 and 125,607.21 is: 173,338.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,095.27 : 305,112.49 = 125,607.21 : x
  2. Step 2: Convert to fraction form
    221,095.27/305,112.49 = 125,607.21/x
  3. Step 3: Cross multiply
    221,095.27x = 305,112.49 × 125,607.21
  4. Step 4: Simplify right side
    221,095.27x = 38,324,327,146.86
  5. Step 5: Solve for x
    x = 38,324,327,146.86/221,095.27
  6. Step 6: Final answer
    x = 173,338.52

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1.5x scale

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.