Home / 221,530.46-305,708.12-126,035.11

Finding the Fourth Proportional to 221,530.46, 305,708.12 and 126,035.11

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Solution

The fourth proportional to 221,530.46, 305,708.12 and 126,035.11 is: 173,926.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,530.46 : 305,708.12 = 126,035.11 : x
  2. Step 2: Convert to fraction form
    221,530.46/305,708.12 = 126,035.11/x
  3. Step 3: Cross multiply
    221,530.46x = 305,708.12 × 126,035.11
  4. Step 4: Simplify right side
    221,530.46x = 38,529,955,003.55
  5. Step 5: Solve for x
    x = 38,529,955,003.55/221,530.46
  6. Step 6: Final answer
    x = 173,926.22

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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.