Home / 119,823.92-165,355.90-66,109.40

Finding the Fourth Proportional to 119,823.92, 165,355.90 and 66,109.40

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Solution

The fourth proportional to 119,823.92, 165,355.90 and 66,109.40 is: 91,230.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,823.92 : 165,355.90 = 66,109.40 : x
  2. Step 2: Convert to fraction form
    119,823.92/165,355.90 = 66,109.40/x
  3. Step 3: Cross multiply
    119,823.92x = 165,355.90 × 66,109.40
  4. Step 4: Simplify right side
    119,823.92x = 10,931,579,335.46
  5. Step 5: Solve for x
    x = 10,931,579,335.46/119,823.92
  6. Step 6: Final answer
    x = 91,230.36

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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.