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Finding the Fourth Proportional to 104,758.76, 144,202 and 91,306.68

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Solution

The fourth proportional to 104,758.76, 144,202 and 91,306.68 is: 125,685.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,758.76 : 144,202 = 91,306.68 : x
  2. Step 2: Convert to fraction form
    104,758.76/144,202 = 91,306.68/x
  3. Step 3: Cross multiply
    104,758.76x = 144,202 × 91,306.68
  4. Step 4: Simplify right side
    104,758.76x = 13,166,605,869.36
  5. Step 5: Solve for x
    x = 13,166,605,869.36/104,758.76
  6. Step 6: Final answer
    x = 125,685.01

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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.