Home / 102,195.88-141,033.36-61,917.01

Finding the Fourth Proportional to 102,195.88, 141,033.36 and 61,917.01

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Solution

The fourth proportional to 102,195.88, 141,033.36 and 61,917.01 is: 85,447.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,195.88 : 141,033.36 = 61,917.01 : x
  2. Step 2: Convert to fraction form
    102,195.88/141,033.36 = 61,917.01/x
  3. Step 3: Cross multiply
    102,195.88x = 141,033.36 × 61,917.01
  4. Step 4: Simplify right side
    102,195.88x = 8,732,363,961.45
  5. Step 5: Solve for x
    x = 8,732,363,961.45/102,195.88
  6. Step 6: Final answer
    x = 85,447.32

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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.