Home / 155,916.12-215,152.56-92,241.48

Finding the Fourth Proportional to 155,916.12, 215,152.56 and 92,241.48

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Solution

The fourth proportional to 155,916.12, 215,152.56 and 92,241.48 is: 127,286.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,916.12 : 215,152.56 = 92,241.48 : x
  2. Step 2: Convert to fraction form
    155,916.12/215,152.56 = 92,241.48/x
  3. Step 3: Cross multiply
    155,916.12x = 215,152.56 × 92,241.48
  4. Step 4: Simplify right side
    155,916.12x = 19,845,990,560.19
  5. Step 5: Solve for x
    x = 19,845,990,560.19/155,916.12
  6. Step 6: Final answer
    x = 127,286.33

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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.