Home / 155,931.80-215,241.17-92,269.44

Finding the Fourth Proportional to 155,931.80, 215,241.17 and 92,269.44

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Solution

The fourth proportional to 155,931.80, 215,241.17 and 92,269.44 is: 127,364.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,931.80 : 215,241.17 = 92,269.44 : x
  2. Step 2: Convert to fraction form
    155,931.80/215,241.17 = 92,269.44/x
  3. Step 3: Cross multiply
    155,931.80x = 215,241.17 × 92,269.44
  4. Step 4: Simplify right side
    155,931.80x = 19,860,181,759.50
  5. Step 5: Solve for x
    x = 19,860,181,759.50/155,931.80
  6. Step 6: Final answer
    x = 127,364.54

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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.