Home / 119,689.50-165,171.94-65,973.36

Finding the Fourth Proportional to 119,689.50, 165,171.94 and 65,973.36

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Solution

The fourth proportional to 119,689.50, 165,171.94 and 65,973.36 is: 91,043.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,689.50 : 165,171.94 = 65,973.36 : x
  2. Step 2: Convert to fraction form
    119,689.50/165,171.94 = 65,973.36/x
  3. Step 3: Cross multiply
    119,689.50x = 165,171.94 × 65,973.36
  4. Step 4: Simplify right side
    119,689.50x = 10,896,947,859.52
  5. Step 5: Solve for x
    x = 10,896,947,859.52/119,689.50
  6. Step 6: Final answer
    x = 91,043.47

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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.