Home / 221,585.64-305,934.82-136,827.24

Finding the Fourth Proportional to 221,585.64, 305,934.82 and 136,827.24

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Solution

The fourth proportional to 221,585.64, 305,934.82 and 136,827.24 is: 188,912.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,585.64 : 305,934.82 = 136,827.24 : x
  2. Step 2: Convert to fraction form
    221,585.64/305,934.82 = 136,827.24/x
  3. Step 3: Cross multiply
    221,585.64x = 305,934.82 × 136,827.24
  4. Step 4: Simplify right side
    221,585.64x = 41,860,217,040.50
  5. Step 5: Solve for x
    x = 41,860,217,040.50/221,585.64
  6. Step 6: Final answer
    x = 188,912.14

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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.