Home / 119,678.27-165,156.79-65,963.30

Finding the Fourth Proportional to 119,678.27, 165,156.79 and 65,963.30

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Solution

The fourth proportional to 119,678.27, 165,156.79 and 65,963.30 is: 91,029.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,678.27 : 165,156.79 = 65,963.30 : x
  2. Step 2: Convert to fraction form
    119,678.27/165,156.79 = 65,963.30/x
  3. Step 3: Cross multiply
    119,678.27x = 165,156.79 × 65,963.30
  4. Step 4: Simplify right side
    119,678.27x = 10,894,285,895.11
  5. Step 5: Solve for x
    x = 10,894,285,895.11/119,678.27
  6. Step 6: Final answer
    x = 91,029.77

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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.