Home / 119,742.41-165,182.68-74,403.16

Finding the Fourth Proportional to 119,742.41, 165,182.68 and 74,403.16

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Solution

The fourth proportional to 119,742.41, 165,182.68 and 74,403.16 is: 102,637.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,742.41 : 165,182.68 = 74,403.16 : x
  2. Step 2: Convert to fraction form
    119,742.41/165,182.68 = 74,403.16/x
  3. Step 3: Cross multiply
    119,742.41x = 165,182.68 × 74,403.16
  4. Step 4: Simplify right side
    119,742.41x = 12,290,113,978.47
  5. Step 5: Solve for x
    x = 12,290,113,978.47/119,742.41
  6. Step 6: Final answer
    x = 102,637.94

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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.