Home / 102,522.35-153,788.20-31,439.79

Finding the Fourth Proportional to 102,522.35, 153,788.20 and 31,439.79

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Solution

The fourth proportional to 102,522.35, 153,788.20 and 31,439.79 is: 47,161.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,522.35 : 153,788.20 = 31,439.79 : x
  2. Step 2: Convert to fraction form
    102,522.35/153,788.20 = 31,439.79/x
  3. Step 3: Cross multiply
    102,522.35x = 153,788.20 × 31,439.79
  4. Step 4: Simplify right side
    102,522.35x = 4,835,068,633.88
  5. Step 5: Solve for x
    x = 4,835,068,633.88/102,522.35
  6. Step 6: Final answer
    x = 47,161.12

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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.