Home / 115,913.90-173,645.25-85,463.57

Finding the Fourth Proportional to 115,913.90, 173,645.25 and 85,463.57

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Solution

The fourth proportional to 115,913.90, 173,645.25 and 85,463.57 is: 128,029.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,913.90 : 173,645.25 = 85,463.57 : x
  2. Step 2: Convert to fraction form
    115,913.90/173,645.25 = 85,463.57/x
  3. Step 3: Cross multiply
    115,913.90x = 173,645.25 × 85,463.57
  4. Step 4: Simplify right side
    115,913.90x = 14,840,342,978.54
  5. Step 5: Solve for x
    x = 14,840,342,978.54/115,913.90
  6. Step 6: Final answer
    x = 128,029.02

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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.