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Finding the Fourth Proportional to 119,935.62, 165,510.03 and 66,221.02

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Solution

The fourth proportional to 119,935.62, 165,510.03 and 66,221.02 is: 91,384.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,935.62 : 165,510.03 = 66,221.02 : x
  2. Step 2: Convert to fraction form
    119,935.62/165,510.03 = 66,221.02/x
  3. Step 3: Cross multiply
    119,935.62x = 165,510.03 × 66,221.02
  4. Step 4: Simplify right side
    119,935.62x = 10,960,243,006.83
  5. Step 5: Solve for x
    x = 10,960,243,006.83/119,935.62
  6. Step 6: Final answer
    x = 91,384.39

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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.