Home / 155,928.23-215,180.82-84,308.08

Finding the Fourth Proportional to 155,928.23, 215,180.82 and 84,308.08

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Solution

The fourth proportional to 155,928.23, 215,180.82 and 84,308.08 is: 116,345.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,928.23 : 215,180.82 = 84,308.08 : x
  2. Step 2: Convert to fraction form
    155,928.23/215,180.82 = 84,308.08/x
  3. Step 3: Cross multiply
    155,928.23x = 215,180.82 × 84,308.08
  4. Step 4: Simplify right side
    155,928.23x = 18,141,481,787.03
  5. Step 5: Solve for x
    x = 18,141,481,787.03/155,928.23
  6. Step 6: Final answer
    x = 116,345.08

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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.