Home / 120,244.64-165,942.50-66,528.79

Finding the Fourth Proportional to 120,244.64, 165,942.50 and 66,528.79

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Solution

The fourth proportional to 120,244.64, 165,942.50 and 66,528.79 is: 91,812.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,244.64 : 165,942.50 = 66,528.79 : x
  2. Step 2: Convert to fraction form
    120,244.64/165,942.50 = 66,528.79/x
  3. Step 3: Cross multiply
    120,244.64x = 165,942.50 × 66,528.79
  4. Step 4: Simplify right side
    120,244.64x = 11,039,953,734.58
  5. Step 5: Solve for x
    x = 11,039,953,734.58/120,244.64
  6. Step 6: Final answer
    x = 91,812.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.