Home / 155,928.66-215,181.68-84,308.73

Finding the Fourth Proportional to 155,928.66, 215,181.68 and 84,308.73

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Solution

The fourth proportional to 155,928.66, 215,181.68 and 84,308.73 is: 116,346.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,928.66 : 215,181.68 = 84,308.73 : x
  2. Step 2: Convert to fraction form
    155,928.66/215,181.68 = 84,308.73/x
  3. Step 3: Cross multiply
    155,928.66x = 215,181.68 × 84,308.73
  4. Step 4: Simplify right side
    155,928.66x = 18,141,693,738.52
  5. Step 5: Solve for x
    x = 18,141,693,738.52/155,928.66
  6. Step 6: Final answer
    x = 116,346.11

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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.