Home / 98,700.77-136,083.62-82,371.48

Finding the Fourth Proportional to 98,700.77, 136,083.62 and 82,371.48

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Solution

The fourth proportional to 98,700.77, 136,083.62 and 82,371.48 is: 113,569.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,700.77 : 136,083.62 = 82,371.48 : x
  2. Step 2: Convert to fraction form
    98,700.77/136,083.62 = 82,371.48/x
  3. Step 3: Cross multiply
    98,700.77x = 136,083.62 × 82,371.48
  4. Step 4: Simplify right side
    98,700.77x = 11,209,408,771.30
  5. Step 5: Solve for x
    x = 11,209,408,771.30/98,700.77
  6. Step 6: Final answer
    x = 113,569.62

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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.