Home / 109,560.81-151,198.43-61,813.92

Finding the Fourth Proportional to 109,560.81, 151,198.43 and 61,813.92

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Solution

The fourth proportional to 109,560.81, 151,198.43 and 61,813.92 is: 85,305.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,560.81 : 151,198.43 = 61,813.92 : x
  2. Step 2: Convert to fraction form
    109,560.81/151,198.43 = 61,813.92/x
  3. Step 3: Cross multiply
    109,560.81x = 151,198.43 × 61,813.92
  4. Step 4: Simplify right side
    109,560.81x = 9,346,167,347.08
  5. Step 5: Solve for x
    x = 9,346,167,347.08/109,560.81
  6. Step 6: Final answer
    x = 85,305.75

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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.