Home / 119,780.24-165,297.51-66,066.71

Finding the Fourth Proportional to 119,780.24, 165,297.51 and 66,066.71

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Solution

The fourth proportional to 119,780.24, 165,297.51 and 66,066.71 is: 91,172.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,780.24 : 165,297.51 = 66,066.71 : x
  2. Step 2: Convert to fraction form
    119,780.24/165,297.51 = 66,066.71/x
  3. Step 3: Cross multiply
    119,780.24x = 165,297.51 × 66,066.71
  4. Step 4: Simplify right side
    119,780.24x = 10,920,661,830.40
  5. Step 5: Solve for x
    x = 10,920,661,830.40/119,780.24
  6. Step 6: Final answer
    x = 91,172.49

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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.