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Finding the Fourth Proportional to 102,939.40, 154,420.62 and 32,802.76

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Solution

The fourth proportional to 102,939.40, 154,420.62 and 32,802.76 is: 49,207.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,939.40 : 154,420.62 = 32,802.76 : x
  2. Step 2: Convert to fraction form
    102,939.40/154,420.62 = 32,802.76/x
  3. Step 3: Cross multiply
    102,939.40x = 154,420.62 × 32,802.76
  4. Step 4: Simplify right side
    102,939.40x = 5,065,422,536.91
  5. Step 5: Solve for x
    x = 5,065,422,536.91/102,939.40
  6. Step 6: Final answer
    x = 49,207.81

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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.