Home / 138,714.06-208,109.97-55,666.38

Finding the Fourth Proportional to 138,714.06, 208,109.97 and 55,666.38

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Solution

The fourth proportional to 138,714.06, 208,109.97 and 55,666.38 is: 83,515.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,714.06 : 208,109.97 = 55,666.38 : x
  2. Step 2: Convert to fraction form
    138,714.06/208,109.97 = 55,666.38/x
  3. Step 3: Cross multiply
    138,714.06x = 208,109.97 × 55,666.38
  4. Step 4: Simplify right side
    138,714.06x = 11,584,728,671.81
  5. Step 5: Solve for x
    x = 11,584,728,671.81/138,714.06
  6. Step 6: Final answer
    x = 83,515.17

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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.