Home / 98,731.11-136,107.22-70,387.59

Finding the Fourth Proportional to 98,731.11, 136,107.22 and 70,387.59

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Solution

The fourth proportional to 98,731.11, 136,107.22 and 70,387.59 is: 97,033.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,731.11 : 136,107.22 = 70,387.59 : x
  2. Step 2: Convert to fraction form
    98,731.11/136,107.22 = 70,387.59/x
  3. Step 3: Cross multiply
    98,731.11x = 136,107.22 × 70,387.59
  4. Step 4: Simplify right side
    98,731.11x = 9,580,259,197.40
  5. Step 5: Solve for x
    x = 9,580,259,197.40/98,731.11
  6. Step 6: Final answer
    x = 97,033.84

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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.