Home / 99,399.18-137,125.67-59,090.07

Finding the Fourth Proportional to 99,399.18, 137,125.67 and 59,090.07

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Solution

The fourth proportional to 99,399.18, 137,125.67 and 59,090.07 is: 81,517.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,399.18 : 137,125.67 = 59,090.07 : x
  2. Step 2: Convert to fraction form
    99,399.18/137,125.67 = 59,090.07/x
  3. Step 3: Cross multiply
    99,399.18x = 137,125.67 × 59,090.07
  4. Step 4: Simplify right side
    99,399.18x = 8,102,765,143.65
  5. Step 5: Solve for x
    x = 8,102,765,143.65/99,399.18
  6. Step 6: Final answer
    x = 81,517.42

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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.