Home / 99,717.20-137,329.80-97,539.92

Finding the Fourth Proportional to 99,717.20, 137,329.80 and 97,539.92

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Solution

The fourth proportional to 99,717.20, 137,329.80 and 97,539.92 is: 134,331.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,717.20 : 137,329.80 = 97,539.92 : x
  2. Step 2: Convert to fraction form
    99,717.20/137,329.80 = 97,539.92/x
  3. Step 3: Cross multiply
    99,717.20x = 137,329.80 × 97,539.92
  4. Step 4: Simplify right side
    99,717.20x = 13,395,137,705.62
  5. Step 5: Solve for x
    x = 13,395,137,705.62/99,717.20
  6. Step 6: Final answer
    x = 134,331.27

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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.