Home / 221,783.96-306,061.56-126,290.66

Finding the Fourth Proportional to 221,783.96, 306,061.56 and 126,290.66

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Solution

The fourth proportional to 221,783.96, 306,061.56 and 126,290.66 is: 174,280.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,783.96 : 306,061.56 = 126,290.66 : x
  2. Step 2: Convert to fraction form
    221,783.96/306,061.56 = 126,290.66/x
  3. Step 3: Cross multiply
    221,783.96x = 306,061.56 × 126,290.66
  4. Step 4: Simplify right side
    221,783.96x = 38,652,714,882.72
  5. Step 5: Solve for x
    x = 38,652,714,882.72/221,783.96
  6. Step 6: Final answer
    x = 174,280.93

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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.