Home / 155,977.26-215,248.62-84,357.28

Finding the Fourth Proportional to 155,977.26, 215,248.62 and 84,357.28

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Solution

The fourth proportional to 155,977.26, 215,248.62 and 84,357.28 is: 116,413.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,977.26 : 215,248.62 = 84,357.28 : x
  2. Step 2: Convert to fraction form
    155,977.26/215,248.62 = 84,357.28/x
  3. Step 3: Cross multiply
    155,977.26x = 215,248.62 × 84,357.28
  4. Step 4: Simplify right side
    155,977.26x = 18,157,787,685.17
  5. Step 5: Solve for x
    x = 18,157,787,685.17/155,977.26
  6. Step 6: Final answer
    x = 116,413.04

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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.