Home / 98,933.22-136,708.88-72,029.02

Finding the Fourth Proportional to 98,933.22, 136,708.88 and 72,029.02

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Solution

The fourth proportional to 98,933.22, 136,708.88 and 72,029.02 is: 99,531.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,933.22 : 136,708.88 = 72,029.02 : x
  2. Step 2: Convert to fraction form
    98,933.22/136,708.88 = 72,029.02/x
  3. Step 3: Cross multiply
    98,933.22x = 136,708.88 × 72,029.02
  4. Step 4: Simplify right side
    98,933.22x = 9,847,006,651.70
  5. Step 5: Solve for x
    x = 9,847,006,651.70/98,933.22
  6. Step 6: Final answer
    x = 99,531.85

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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.