Home / 189,929.94-284,789.71-77,688.96

Finding the Fourth Proportional to 189,929.94, 284,789.71 and 77,688.96

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Solution

The fourth proportional to 189,929.94, 284,789.71 and 77,688.96 is: 116,490.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,929.94 : 284,789.71 = 77,688.96 : x
  2. Step 2: Convert to fraction form
    189,929.94/284,789.71 = 77,688.96/x
  3. Step 3: Cross multiply
    189,929.94x = 284,789.71 × 77,688.96
  4. Step 4: Simplify right side
    189,929.94x = 22,125,016,388.60
  5. Step 5: Solve for x
    x = 22,125,016,388.60/189,929.94
  6. Step 6: Final answer
    x = 116,490.41

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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.