Home / 189,512.24-284,021.78-77,061.33

Finding the Fourth Proportional to 189,512.24, 284,021.78 and 77,061.33

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Solution

The fourth proportional to 189,512.24, 284,021.78 and 77,061.33 is: 115,491.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,512.24 : 284,021.78 = 77,061.33 : x
  2. Step 2: Convert to fraction form
    189,512.24/284,021.78 = 77,061.33/x
  3. Step 3: Cross multiply
    189,512.24x = 284,021.78 × 77,061.33
  4. Step 4: Simplify right side
    189,512.24x = 21,887,095,730.46
  5. Step 5: Solve for x
    x = 21,887,095,730.46/189,512.24
  6. Step 6: Final answer
    x = 115,491.73

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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.