Home / 99,799.24-137,661.78-67,982.44

Finding the Fourth Proportional to 99,799.24, 137,661.78 and 67,982.44

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Solution

The fourth proportional to 99,799.24, 137,661.78 and 67,982.44 is: 93,774.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,799.24 : 137,661.78 = 67,982.44 : x
  2. Step 2: Convert to fraction form
    99,799.24/137,661.78 = 67,982.44/x
  3. Step 3: Cross multiply
    99,799.24x = 137,661.78 × 67,982.44
  4. Step 4: Simplify right side
    99,799.24x = 9,358,583,699.14
  5. Step 5: Solve for x
    x = 9,358,583,699.14/99,799.24
  6. Step 6: Final answer
    x = 93,774.10

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1.5x scale

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.