Home / 99,895.44-137,764.32-78,094.56

Finding the Fourth Proportional to 99,895.44, 137,764.32 and 78,094.56

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Solution

The fourth proportional to 99,895.44, 137,764.32 and 78,094.56 is: 107,699.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,895.44 : 137,764.32 = 78,094.56 : x
  2. Step 2: Convert to fraction form
    99,895.44/137,764.32 = 78,094.56/x
  3. Step 3: Cross multiply
    99,895.44x = 137,764.32 × 78,094.56
  4. Step 4: Simplify right side
    99,895.44x = 10,758,643,954.10
  5. Step 5: Solve for x
    x = 10,758,643,954.10/99,895.44
  6. Step 6: Final answer
    x = 107,699.05

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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.