Home / 102,380.90-141,297.08-57,063.02

Finding the Fourth Proportional to 102,380.90, 141,297.08 and 57,063.02

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Solution

The fourth proportional to 102,380.90, 141,297.08 and 57,063.02 is: 78,753.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,380.90 : 141,297.08 = 57,063.02 : x
  2. Step 2: Convert to fraction form
    102,380.90/141,297.08 = 57,063.02/x
  3. Step 3: Cross multiply
    102,380.90x = 141,297.08 × 57,063.02
  4. Step 4: Simplify right side
    102,380.90x = 8,062,837,110.18
  5. Step 5: Solve for x
    x = 8,062,837,110.18/102,380.90
  6. Step 6: Final answer
    x = 78,753.34

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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.