Home / 82,933.71-124,218.21-68,539.05

Finding the Fourth Proportional to 82,933.71, 124,218.21 and 68,539.05

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Solution

The fourth proportional to 82,933.71, 124,218.21 and 68,539.05 is: 102,657.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,933.71 : 124,218.21 = 68,539.05 : x
  2. Step 2: Convert to fraction form
    82,933.71/124,218.21 = 68,539.05/x
  3. Step 3: Cross multiply
    82,933.71x = 124,218.21 × 68,539.05
  4. Step 4: Simplify right side
    82,933.71x = 8,513,798,106.10
  5. Step 5: Solve for x
    x = 8,513,798,106.10/82,933.71
  6. Step 6: Final answer
    x = 102,657.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.