Home / 102,820.50-141,891.30-57,497.96

Finding the Fourth Proportional to 102,820.50, 141,891.30 and 57,497.96

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Solution

The fourth proportional to 102,820.50, 141,891.30 and 57,497.96 is: 79,346.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,820.50 : 141,891.30 = 57,497.96 : x
  2. Step 2: Convert to fraction form
    102,820.50/141,891.30 = 57,497.96/x
  3. Step 3: Cross multiply
    102,820.50x = 141,891.30 × 57,497.96
  4. Step 4: Simplify right side
    102,820.50x = 8,158,460,291.75
  5. Step 5: Solve for x
    x = 8,158,460,291.75/102,820.50
  6. Step 6: Final answer
    x = 79,346.63

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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.