Home / 138,766.23-191,497.40-75,104.03

Finding the Fourth Proportional to 138,766.23, 191,497.40 and 75,104.03

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Solution

The fourth proportional to 138,766.23, 191,497.40 and 75,104.03 is: 103,643.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,766.23 : 191,497.40 = 75,104.03 : x
  2. Step 2: Convert to fraction form
    138,766.23/191,497.40 = 75,104.03/x
  3. Step 3: Cross multiply
    138,766.23x = 191,497.40 × 75,104.03
  4. Step 4: Simplify right side
    138,766.23x = 14,382,226,099.00
  5. Step 5: Solve for x
    x = 14,382,226,099.00/138,766.23
  6. Step 6: Final answer
    x = 103,643.56

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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.