Home / 109,484.22-151,043.82-77,265.60

Finding the Fourth Proportional to 109,484.22, 151,043.82 and 77,265.60

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Solution

The fourth proportional to 109,484.22, 151,043.82 and 77,265.60 is: 106,595.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,484.22 : 151,043.82 = 77,265.60 : x
  2. Step 2: Convert to fraction form
    109,484.22/151,043.82 = 77,265.60/x
  3. Step 3: Cross multiply
    109,484.22x = 151,043.82 × 77,265.60
  4. Step 4: Simplify right side
    109,484.22x = 11,670,491,378.59
  5. Step 5: Solve for x
    x = 11,670,491,378.59/109,484.22
  6. Step 6: Final answer
    x = 106,595.19

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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.