Home / 99,927.25-137,907.47-56,908.56

Finding the Fourth Proportional to 99,927.25, 137,907.47 and 56,908.56

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Solution

The fourth proportional to 99,927.25, 137,907.47 and 56,908.56 is: 78,538.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,927.25 : 137,907.47 = 56,908.56 : x
  2. Step 2: Convert to fraction form
    99,927.25/137,907.47 = 56,908.56/x
  3. Step 3: Cross multiply
    99,927.25x = 137,907.47 × 56,908.56
  4. Step 4: Simplify right side
    99,927.25x = 7,848,116,190.37
  5. Step 5: Solve for x
    x = 7,848,116,190.37/99,927.25
  6. Step 6: Final answer
    x = 78,538.30

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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.