Home / 98,815.97-136,431.89-66,598.50

Finding the Fourth Proportional to 98,815.97, 136,431.89 and 66,598.50

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Solution

The fourth proportional to 98,815.97, 136,431.89 and 66,598.50 is: 91,950.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,815.97 : 136,431.89 = 66,598.50 : x
  2. Step 2: Convert to fraction form
    98,815.97/136,431.89 = 66,598.50/x
  3. Step 3: Cross multiply
    98,815.97x = 136,431.89 × 66,598.50
  4. Step 4: Simplify right side
    98,815.97x = 9,086,158,893.17
  5. Step 5: Solve for x
    x = 9,086,158,893.17/98,815.97
  6. Step 6: Final answer
    x = 91,950.31

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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.