Home / 119,761.56-165,278.88-66,046.50

Finding the Fourth Proportional to 119,761.56, 165,278.88 and 66,046.50

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Solution

The fourth proportional to 119,761.56, 165,278.88 and 66,046.50 is: 91,148.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,761.56 : 165,278.88 = 66,046.50 : x
  2. Step 2: Convert to fraction form
    119,761.56/165,278.88 = 66,046.50/x
  3. Step 3: Cross multiply
    119,761.56x = 165,278.88 × 66,046.50
  4. Step 4: Simplify right side
    119,761.56x = 10,916,091,547.92
  5. Step 5: Solve for x
    x = 10,916,091,547.92/119,761.56
  6. Step 6: Final answer
    x = 91,148.54

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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.