Home / 99,415.90-137,141.61-59,100.97

Finding the Fourth Proportional to 99,415.90, 137,141.61 and 59,100.97

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Solution

The fourth proportional to 99,415.90, 137,141.61 and 59,100.97 is: 81,528.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,415.90 : 137,141.61 = 59,100.97 : x
  2. Step 2: Convert to fraction form
    99,415.90/137,141.61 = 59,100.97/x
  3. Step 3: Cross multiply
    99,415.90x = 137,141.61 × 59,100.97
  4. Step 4: Simplify right side
    99,415.90x = 8,105,202,178.36
  5. Step 5: Solve for x
    x = 8,105,202,178.36/99,415.90
  6. Step 6: Final answer
    x = 81,528.23

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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.