Home / 99,381.36-137,146.82-59,087.28

Finding the Fourth Proportional to 99,381.36, 137,146.82 and 59,087.28

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Solution

The fourth proportional to 99,381.36, 137,146.82 and 59,087.28 is: 81,540.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,381.36 : 137,146.82 = 59,087.28 : x
  2. Step 2: Convert to fraction form
    99,381.36/137,146.82 = 59,087.28/x
  3. Step 3: Cross multiply
    99,381.36x = 137,146.82 × 59,087.28
  4. Step 4: Simplify right side
    99,381.36x = 8,103,632,554.45
  5. Step 5: Solve for x
    x = 8,103,632,554.45/99,381.36
  6. Step 6: Final answer
    x = 81,540.77

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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.