Home / 189,573.20-284,523.44-77,315.32

Finding the Fourth Proportional to 189,573.20, 284,523.44 and 77,315.32

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Solution

The fourth proportional to 189,573.20, 284,523.44 and 77,315.32 is: 116,039.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,573.20 : 284,523.44 = 77,315.32 : x
  2. Step 2: Convert to fraction form
    189,573.20/284,523.44 = 77,315.32/x
  3. Step 3: Cross multiply
    189,573.20x = 284,523.44 × 77,315.32
  4. Step 4: Simplify right side
    189,573.20x = 21,998,020,811.10
  5. Step 5: Solve for x
    x = 21,998,020,811.10/189,573.20
  6. Step 6: Final answer
    x = 116,039.72

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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.