Home / 119,642.47-165,107.16-65,926.37

Finding the Fourth Proportional to 119,642.47, 165,107.16 and 65,926.37

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Solution

The fourth proportional to 119,642.47, 165,107.16 and 65,926.37 is: 90,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,642.47 : 165,107.16 = 65,926.37 : x
  2. Step 2: Convert to fraction form
    119,642.47/165,107.16 = 65,926.37/x
  3. Step 3: Cross multiply
    119,642.47x = 165,107.16 × 65,926.37
  4. Step 4: Simplify right side
    119,642.47x = 10,884,916,132.58
  5. Step 5: Solve for x
    x = 10,884,916,132.58/119,642.47
  6. Step 6: Final answer
    x = 90,978.70

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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.