Home / 121,994.88-183,272.68-86,544.22

Finding the Fourth Proportional to 121,994.88, 183,272.68 and 86,544.22

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Solution

The fourth proportional to 121,994.88, 183,272.68 and 86,544.22 is: 130,015.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,994.88 : 183,272.68 = 86,544.22 : x
  2. Step 2: Convert to fraction form
    121,994.88/183,272.68 = 86,544.22/x
  3. Step 3: Cross multiply
    121,994.88x = 183,272.68 × 86,544.22
  4. Step 4: Simplify right side
    121,994.88x = 15,861,191,137.91
  5. Step 5: Solve for x
    x = 15,861,191,137.91/121,994.88
  6. Step 6: Final answer
    x = 130,015.22

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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.