Home / 109,446.19-163,956.86-71,892.31

Finding the Fourth Proportional to 109,446.19, 163,956.86 and 71,892.31

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Solution

The fourth proportional to 109,446.19, 163,956.86 and 71,892.31 is: 107,698.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,446.19 : 163,956.86 = 71,892.31 : x
  2. Step 2: Convert to fraction form
    109,446.19/163,956.86 = 71,892.31/x
  3. Step 3: Cross multiply
    109,446.19x = 163,956.86 × 71,892.31
  4. Step 4: Simplify right side
    109,446.19x = 11,787,237,213.41
  5. Step 5: Solve for x
    x = 11,787,237,213.41/109,446.19
  6. Step 6: Final answer
    x = 107,698.93

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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.