Home / 203,275.86-280,657.62-126,911.22

Finding the Fourth Proportional to 203,275.86, 280,657.62 and 126,911.22

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Solution

The fourth proportional to 203,275.86, 280,657.62 and 126,911.22 is: 175,222.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,275.86 : 280,657.62 = 126,911.22 : x
  2. Step 2: Convert to fraction form
    203,275.86/280,657.62 = 126,911.22/x
  3. Step 3: Cross multiply
    203,275.86x = 280,657.62 × 126,911.22
  4. Step 4: Simplify right side
    203,275.86x = 35,618,600,956.50
  5. Step 5: Solve for x
    x = 35,618,600,956.50/203,275.86
  6. Step 6: Final answer
    x = 175,222.98

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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.