Home / 99,926.49-137,896.90-54,603.48

Finding the Fourth Proportional to 99,926.49, 137,896.90 and 54,603.48

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Solution

The fourth proportional to 99,926.49, 137,896.90 and 54,603.48 is: 75,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,926.49 : 137,896.90 = 54,603.48 : x
  2. Step 2: Convert to fraction form
    99,926.49/137,896.90 = 54,603.48/x
  3. Step 3: Cross multiply
    99,926.49x = 137,896.90 × 54,603.48
  4. Step 4: Simplify right side
    99,926.49x = 7,529,651,001.82
  5. Step 5: Solve for x
    x = 7,529,651,001.82/99,926.49
  6. Step 6: Final answer
    x = 75,351.90

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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.