Home / 109,736.87-151,449.18-61,993.30

Finding the Fourth Proportional to 109,736.87, 151,449.18 and 61,993.30

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Solution

The fourth proportional to 109,736.87, 151,449.18 and 61,993.30 is: 85,557.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,736.87 : 151,449.18 = 61,993.30 : x
  2. Step 2: Convert to fraction form
    109,736.87/151,449.18 = 61,993.30/x
  3. Step 3: Cross multiply
    109,736.87x = 151,449.18 × 61,993.30
  4. Step 4: Simplify right side
    109,736.87x = 9,388,834,071.87
  5. Step 5: Solve for x
    x = 9,388,834,071.87/109,736.87
  6. Step 6: Final answer
    x = 85,557.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.