Home / 138,689.94-208,043.55-55,573.14

Finding the Fourth Proportional to 138,689.94, 208,043.55 and 55,573.14

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Solution

The fourth proportional to 138,689.94, 208,043.55 and 55,573.14 is: 83,363.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,689.94 : 208,043.55 = 55,573.14 : x
  2. Step 2: Convert to fraction form
    138,689.94/208,043.55 = 55,573.14/x
  3. Step 3: Cross multiply
    138,689.94x = 208,043.55 × 55,573.14
  4. Step 4: Simplify right side
    138,689.94x = 11,561,633,330.25
  5. Step 5: Solve for x
    x = 11,561,633,330.25/138,689.94
  6. Step 6: Final answer
    x = 83,363.17

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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.