Home / 119,780.45-165,291.06-66,062.26

Finding the Fourth Proportional to 119,780.45, 165,291.06 and 66,062.26

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Solution

The fourth proportional to 119,780.45, 165,291.06 and 66,062.26 is: 91,162.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,780.45 : 165,291.06 = 66,062.26 : x
  2. Step 2: Convert to fraction form
    119,780.45/165,291.06 = 66,062.26/x
  3. Step 3: Cross multiply
    119,780.45x = 165,291.06 × 66,062.26
  4. Step 4: Simplify right side
    119,780.45x = 10,919,500,981.40
  5. Step 5: Solve for x
    x = 10,919,500,981.40/119,780.45
  6. Step 6: Final answer
    x = 91,162.63

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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.