Home / 221,106.80-305,187-125,617.52

Finding the Fourth Proportional to 221,106.80, 305,187 and 125,617.52

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Solution

The fourth proportional to 221,106.80, 305,187 and 125,617.52 is: 173,386.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,106.80 : 305,187 = 125,617.52 : x
  2. Step 2: Convert to fraction form
    221,106.80/305,187 = 125,617.52/x
  3. Step 3: Cross multiply
    221,106.80x = 305,187 × 125,617.52
  4. Step 4: Simplify right side
    221,106.80x = 38,336,834,076.24
  5. Step 5: Solve for x
    x = 38,336,834,076.24/221,106.80
  6. Step 6: Final answer
    x = 173,386.05

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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.