Home / 104,431.44-144,115.56-56,684.78

Finding the Fourth Proportional to 104,431.44, 144,115.56 and 56,684.78

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Solution

The fourth proportional to 104,431.44, 144,115.56 and 56,684.78 is: 78,225.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,431.44 : 144,115.56 = 56,684.78 : x
  2. Step 2: Convert to fraction form
    104,431.44/144,115.56 = 56,684.78/x
  3. Step 3: Cross multiply
    104,431.44x = 144,115.56 × 56,684.78
  4. Step 4: Simplify right side
    104,431.44x = 8,169,158,813.18
  5. Step 5: Solve for x
    x = 8,169,158,813.18/104,431.44
  6. Step 6: Final answer
    x = 78,225.09

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1.5x scale

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.