Home / 138,827.70-208,317.15-75,644.10

Finding the Fourth Proportional to 138,827.70, 208,317.15 and 75,644.10

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Solution

The fourth proportional to 138,827.70, 208,317.15 and 75,644.10 is: 113,507.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,827.70 : 208,317.15 = 75,644.10 : x
  2. Step 2: Convert to fraction form
    138,827.70/208,317.15 = 75,644.10/x
  3. Step 3: Cross multiply
    138,827.70x = 208,317.15 × 75,644.10
  4. Step 4: Simplify right side
    138,827.70x = 15,757,963,326.32
  5. Step 5: Solve for x
    x = 15,757,963,326.32/138,827.70
  6. Step 6: Final answer
    x = 113,507.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.