Home / 136,001.36-187,513.16-90,579.80

Finding the Fourth Proportional to 136,001.36, 187,513.16 and 90,579.80

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Solution

The fourth proportional to 136,001.36, 187,513.16 and 90,579.80 is: 124,887.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,001.36 : 187,513.16 = 90,579.80 : x
  2. Step 2: Convert to fraction form
    136,001.36/187,513.16 = 90,579.80/x
  3. Step 3: Cross multiply
    136,001.36x = 187,513.16 × 90,579.80
  4. Step 4: Simplify right side
    136,001.36x = 16,984,904,530.17
  5. Step 5: Solve for x
    x = 16,984,904,530.17/136,001.36
  6. Step 6: Final answer
    x = 124,887.76

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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.