Home / 174,511.40-261,767.10-85,778.60

Finding the Fourth Proportional to 174,511.40, 261,767.10 and 85,778.60

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Solution

The fourth proportional to 174,511.40, 261,767.10 and 85,778.60 is: 128,667.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,511.40 : 261,767.10 = 85,778.60 : x
  2. Step 2: Convert to fraction form
    174,511.40/261,767.10 = 85,778.60/x
  3. Step 3: Cross multiply
    174,511.40x = 261,767.10 × 85,778.60
  4. Step 4: Simplify right side
    174,511.40x = 22,454,015,364.06
  5. Step 5: Solve for x
    x = 22,454,015,364.06/174,511.40
  6. Step 6: Final answer
    x = 128,667.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.