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Finding the Fourth Proportional to 119,679.84, 165,117.81 and 74,341.71

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Solution

The fourth proportional to 119,679.84, 165,117.81 and 74,341.71 is: 102,566.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,679.84 : 165,117.81 = 74,341.71 : x
  2. Step 2: Convert to fraction form
    119,679.84/165,117.81 = 74,341.71/x
  3. Step 3: Cross multiply
    119,679.84x = 165,117.81 × 74,341.71
  4. Step 4: Simplify right side
    119,679.84x = 12,275,140,346.86
  5. Step 5: Solve for x
    x = 12,275,140,346.86/119,679.84
  6. Step 6: Final answer
    x = 102,566.48

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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.