Home / 88,287.99-131,600.27-81,202.11

Finding the Fourth Proportional to 88,287.99, 131,600.27 and 81,202.11

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Solution

The fourth proportional to 88,287.99, 131,600.27 and 81,202.11 is: 121,038.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,287.99 : 131,600.27 = 81,202.11 : x
  2. Step 2: Convert to fraction form
    88,287.99/131,600.27 = 81,202.11/x
  3. Step 3: Cross multiply
    88,287.99x = 131,600.27 × 81,202.11
  4. Step 4: Simplify right side
    88,287.99x = 10,686,219,310.07
  5. Step 5: Solve for x
    x = 10,686,219,310.07/88,287.99
  6. Step 6: Final answer
    x = 121,038.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.