Home / 221,236.59-305,332.72-125,757.64

Finding the Fourth Proportional to 221,236.59, 305,332.72 and 125,757.64

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Solution

The fourth proportional to 221,236.59, 305,332.72 and 125,757.64 is: 173,560.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,236.59 : 305,332.72 = 125,757.64 : x
  2. Step 2: Convert to fraction form
    221,236.59/305,332.72 = 125,757.64/x
  3. Step 3: Cross multiply
    221,236.59x = 305,332.72 × 125,757.64
  4. Step 4: Simplify right side
    221,236.59x = 38,397,922,281.98
  5. Step 5: Solve for x
    x = 38,397,922,281.98/221,236.59
  6. Step 6: Final answer
    x = 173,560.45

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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.