Home / 265,517.85-398,190.64-87,977.19

Finding the Fourth Proportional to 265,517.85, 398,190.64 and 87,977.19

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Solution

The fourth proportional to 265,517.85, 398,190.64 and 87,977.19 is: 131,937.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,517.85 : 398,190.64 = 87,977.19 : x
  2. Step 2: Convert to fraction form
    265,517.85/398,190.64 = 87,977.19/x
  3. Step 3: Cross multiply
    265,517.85x = 398,190.64 × 87,977.19
  4. Step 4: Simplify right side
    265,517.85x = 35,031,693,591.50
  5. Step 5: Solve for x
    x = 35,031,693,591.50/265,517.85
  6. Step 6: Final answer
    x = 131,937.24

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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.