Home / 155,943.10-215,201.33-84,322.95

Finding the Fourth Proportional to 155,943.10, 215,201.33 and 84,322.95

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Solution

The fourth proportional to 155,943.10, 215,201.33 and 84,322.95 is: 116,365.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,943.10 : 215,201.33 = 84,322.95 : x
  2. Step 2: Convert to fraction form
    155,943.10/215,201.33 = 84,322.95/x
  3. Step 3: Cross multiply
    155,943.10x = 215,201.33 × 84,322.95
  4. Step 4: Simplify right side
    155,943.10x = 18,146,410,989.52
  5. Step 5: Solve for x
    x = 18,146,410,989.52/155,943.10
  6. Step 6: Final answer
    x = 116,365.59

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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.