Home / 189,271.08-261,192.20-108,723.87

Finding the Fourth Proportional to 189,271.08, 261,192.20 and 108,723.87

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Solution

The fourth proportional to 189,271.08, 261,192.20 and 108,723.87 is: 150,037.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,271.08 : 261,192.20 = 108,723.87 : x
  2. Step 2: Convert to fraction form
    189,271.08/261,192.20 = 108,723.87/x
  3. Step 3: Cross multiply
    189,271.08x = 261,192.20 × 108,723.87
  4. Step 4: Simplify right side
    189,271.08x = 28,397,826,254.19
  5. Step 5: Solve for x
    x = 28,397,826,254.19/189,271.08
  6. Step 6: Final answer
    x = 150,037.85

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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.