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Finding the Fourth Proportional to 119,355.04, 164,706.78 and 65,645.56

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Solution

The fourth proportional to 119,355.04, 164,706.78 and 65,645.56 is: 90,589.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,355.04 : 164,706.78 = 65,645.56 : x
  2. Step 2: Convert to fraction form
    119,355.04/164,706.78 = 65,645.56/x
  3. Step 3: Cross multiply
    119,355.04x = 164,706.78 × 65,645.56
  4. Step 4: Simplify right side
    119,355.04x = 10,812,268,808.90
  5. Step 5: Solve for x
    x = 10,812,268,808.90/119,355.04
  6. Step 6: Final answer
    x = 90,589.13

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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.