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Finding the Fourth Proportional to 102,346.68, 153,454.44 and 70,668

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Solution

The fourth proportional to 102,346.68, 153,454.44 and 70,668 is: 105,956.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,346.68 : 153,454.44 = 70,668 : x
  2. Step 2: Convert to fraction form
    102,346.68/153,454.44 = 70,668/x
  3. Step 3: Cross multiply
    102,346.68x = 153,454.44 × 70,668
  4. Step 4: Simplify right side
    102,346.68x = 10,844,318,365.92
  5. Step 5: Solve for x
    x = 10,844,318,365.92/102,346.68
  6. Step 6: Final answer
    x = 105,956.72

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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.