Home / 221,728.23-306,009.27-126,219.51

Finding the Fourth Proportional to 221,728.23, 306,009.27 and 126,219.51

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Solution

The fourth proportional to 221,728.23, 306,009.27 and 126,219.51 is: 174,196.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,728.23 : 306,009.27 = 126,219.51 : x
  2. Step 2: Convert to fraction form
    221,728.23/306,009.27 = 126,219.51/x
  3. Step 3: Cross multiply
    221,728.23x = 306,009.27 × 126,219.51
  4. Step 4: Simplify right side
    221,728.23x = 38,624,340,114.86
  5. Step 5: Solve for x
    x = 38,624,340,114.86/221,728.23
  6. Step 6: Final answer
    x = 174,196.76

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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.