Home / 99,888-137,787.06-62,174.40

Finding the Fourth Proportional to 99,888, 137,787.06 and 62,174.40

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Solution

The fourth proportional to 99,888, 137,787.06 and 62,174.40 is: 85,764.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,888 : 137,787.06 = 62,174.40 : x
  2. Step 2: Convert to fraction form
    99,888/137,787.06 = 62,174.40/x
  3. Step 3: Cross multiply
    99,888x = 137,787.06 × 62,174.40
  4. Step 4: Simplify right side
    99,888x = 8,566,827,783.26
  5. Step 5: Solve for x
    x = 8,566,827,783.26/99,888
  6. Step 6: Final answer
    x = 85,764.33

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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.