Home / 221,529.71-305,707.09-126,034.36

Finding the Fourth Proportional to 221,529.71, 305,707.09 and 126,034.36

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Solution

The fourth proportional to 221,529.71, 305,707.09 and 126,034.36 is: 173,925.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,529.71 : 305,707.09 = 126,034.36 : x
  2. Step 2: Convert to fraction form
    221,529.71/305,707.09 = 126,034.36/x
  3. Step 3: Cross multiply
    221,529.71x = 305,707.09 × 126,034.36
  4. Step 4: Simplify right side
    221,529.71x = 38,529,597,435.61
  5. Step 5: Solve for x
    x = 38,529,597,435.61/221,529.71
  6. Step 6: Final answer
    x = 173,925.19

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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.