Home / 138,726.45-191,442.01-75,063.96

Finding the Fourth Proportional to 138,726.45, 191,442.01 and 75,063.96

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Solution

The fourth proportional to 138,726.45, 191,442.01 and 75,063.96 is: 103,588.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,726.45 : 191,442.01 = 75,063.96 : x
  2. Step 2: Convert to fraction form
    138,726.45/191,442.01 = 75,063.96/x
  3. Step 3: Cross multiply
    138,726.45x = 191,442.01 × 75,063.96
  4. Step 4: Simplify right side
    138,726.45x = 14,370,395,380.96
  5. Step 5: Solve for x
    x = 14,370,395,380.96/138,726.45
  6. Step 6: Final answer
    x = 103,588.00

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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.