Home / 109,530.30-151,167.42-61,788.09

Finding the Fourth Proportional to 109,530.30, 151,167.42 and 61,788.09

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Solution

The fourth proportional to 109,530.30, 151,167.42 and 61,788.09 is: 85,276.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,530.30 : 151,167.42 = 61,788.09 : x
  2. Step 2: Convert to fraction form
    109,530.30/151,167.42 = 61,788.09/x
  3. Step 3: Cross multiply
    109,530.30x = 151,167.42 × 61,788.09
  4. Step 4: Simplify right side
    109,530.30x = 9,340,346,152.03
  5. Step 5: Solve for x
    x = 9,340,346,152.03/109,530.30
  6. Step 6: Final answer
    x = 85,276.37

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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.