Home / 189,718.50-261,855.18-109,192.53

Finding the Fourth Proportional to 189,718.50, 261,855.18 and 109,192.53

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Solution

The fourth proportional to 189,718.50, 261,855.18 and 109,192.53 is: 150,710.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,718.50 : 261,855.18 = 109,192.53 : x
  2. Step 2: Convert to fraction form
    189,718.50/261,855.18 = 109,192.53/x
  3. Step 3: Cross multiply
    189,718.50x = 261,855.18 × 109,192.53
  4. Step 4: Simplify right side
    189,718.50x = 28,592,629,597.81
  5. Step 5: Solve for x
    x = 28,592,629,597.81/189,718.50
  6. Step 6: Final answer
    x = 150,710.81

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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.