Home / 109,956.30-165,015.45-74,333.58

Finding the Fourth Proportional to 109,956.30, 165,015.45 and 74,333.58

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Solution

The fourth proportional to 109,956.30, 165,015.45 and 74,333.58 is: 111,555.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,956.30 : 165,015.45 = 74,333.58 : x
  2. Step 2: Convert to fraction form
    109,956.30/165,015.45 = 74,333.58/x
  3. Step 3: Cross multiply
    109,956.30x = 165,015.45 × 74,333.58
  4. Step 4: Simplify right side
    109,956.30x = 12,266,189,153.81
  5. Step 5: Solve for x
    x = 12,266,189,153.81/109,956.30
  6. Step 6: Final answer
    x = 111,555.13

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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.