Home / 99,359.91-149,039.87-57,777.75

Finding the Fourth Proportional to 99,359.91, 149,039.87 and 57,777.75

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Solution

The fourth proportional to 99,359.91, 149,039.87 and 57,777.75 is: 86,666.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,359.91 : 149,039.87 = 57,777.75 : x
  2. Step 2: Convert to fraction form
    99,359.91/149,039.87 = 57,777.75/x
  3. Step 3: Cross multiply
    99,359.91x = 149,039.87 × 57,777.75
  4. Step 4: Simplify right side
    99,359.91x = 8,611,188,060.00
  5. Step 5: Solve for x
    x = 8,611,188,060.00/99,359.91
  6. Step 6: Final answer
    x = 86,666.63

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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.