Home / 99,837.36-137,774.88-55,125.36

Finding the Fourth Proportional to 99,837.36, 137,774.88 and 55,125.36

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Solution

The fourth proportional to 99,837.36, 137,774.88 and 55,125.36 is: 76,072.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,837.36 : 137,774.88 = 55,125.36 : x
  2. Step 2: Convert to fraction form
    99,837.36/137,774.88 = 55,125.36/x
  3. Step 3: Cross multiply
    99,837.36x = 137,774.88 × 55,125.36
  4. Step 4: Simplify right side
    99,837.36x = 7,594,889,858.96
  5. Step 5: Solve for x
    x = 7,594,889,858.96/99,837.36
  6. Step 6: Final answer
    x = 76,072.62

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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.