Home / 155,883.28-215,121-92,219.44

Finding the Fourth Proportional to 155,883.28, 215,121 and 92,219.44

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Solution

The fourth proportional to 155,883.28, 215,121 and 92,219.44 is: 127,264.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,883.28 : 215,121 = 92,219.44 : x
  2. Step 2: Convert to fraction form
    155,883.28/215,121 = 92,219.44/x
  3. Step 3: Cross multiply
    155,883.28x = 215,121 × 92,219.44
  4. Step 4: Simplify right side
    155,883.28x = 19,838,338,152.24
  5. Step 5: Solve for x
    x = 19,838,338,152.24/155,883.28
  6. Step 6: Final answer
    x = 127,264.05

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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.