Home / 119,761.20-165,280.31-66,051.32

Finding the Fourth Proportional to 119,761.20, 165,280.31 and 66,051.32

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Solution

The fourth proportional to 119,761.20, 165,280.31 and 66,051.32 is: 91,156.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,761.20 : 165,280.31 = 66,051.32 : x
  2. Step 2: Convert to fraction form
    119,761.20/165,280.31 = 66,051.32/x
  3. Step 3: Cross multiply
    119,761.20x = 165,280.31 × 66,051.32
  4. Step 4: Simplify right side
    119,761.20x = 10,916,981,488.85
  5. Step 5: Solve for x
    x = 10,916,981,488.85/119,761.20
  6. Step 6: Final answer
    x = 91,156.25

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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.