Home / 140,133.39-193,410.36-87,769.55

Finding the Fourth Proportional to 140,133.39, 193,410.36 and 87,769.55

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Solution

The fourth proportional to 140,133.39, 193,410.36 and 87,769.55 is: 121,138.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,133.39 : 193,410.36 = 87,769.55 : x
  2. Step 2: Convert to fraction form
    140,133.39/193,410.36 = 87,769.55/x
  3. Step 3: Cross multiply
    140,133.39x = 193,410.36 × 87,769.55
  4. Step 4: Simplify right side
    140,133.39x = 16,975,539,295.49
  5. Step 5: Solve for x
    x = 16,975,539,295.49/140,133.39
  6. Step 6: Final answer
    x = 121,138.43

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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.