Home / 155,990.31-215,278.88-92,363.19

Finding the Fourth Proportional to 155,990.31, 215,278.88 and 92,363.19

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Solution

The fourth proportional to 155,990.31, 215,278.88 and 92,363.19 is: 127,468.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,990.31 : 215,278.88 = 92,363.19 : x
  2. Step 2: Convert to fraction form
    155,990.31/215,278.88 = 92,363.19/x
  3. Step 3: Cross multiply
    155,990.31x = 215,278.88 × 92,363.19
  4. Step 4: Simplify right side
    155,990.31x = 19,883,844,096.43
  5. Step 5: Solve for x
    x = 19,883,844,096.43/155,990.31
  6. Step 6: Final answer
    x = 127,468.46

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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.