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Finding the Fourth Proportional to 102,990.66, 154,488.69 and 32,869.92

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Solution

The fourth proportional to 102,990.66, 154,488.69 and 32,869.92 is: 49,305.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,990.66 : 154,488.69 = 32,869.92 : x
  2. Step 2: Convert to fraction form
    102,990.66/154,488.69 = 32,869.92/x
  3. Step 3: Cross multiply
    102,990.66x = 154,488.69 × 32,869.92
  4. Step 4: Simplify right side
    102,990.66x = 5,078,030,881.20
  5. Step 5: Solve for x
    x = 5,078,030,881.20/102,990.66
  6. Step 6: Final answer
    x = 49,305.74

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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.