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Finding the Fourth Proportional to 169,140.60, 253,834.02 and 136,257.84

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Solution

The fourth proportional to 169,140.60, 253,834.02 and 136,257.84 is: 204,485.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,140.60 : 253,834.02 = 136,257.84 : x
  2. Step 2: Convert to fraction form
    169,140.60/253,834.02 = 136,257.84/x
  3. Step 3: Cross multiply
    169,140.60x = 253,834.02 × 136,257.84
  4. Step 4: Simplify right side
    169,140.60x = 34,586,875,283.72
  5. Step 5: Solve for x
    x = 34,586,875,283.72/169,140.60
  6. Step 6: Final answer
    x = 204,485.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.