Home / 155,949.73-215,210.70-84,329.80

Finding the Fourth Proportional to 155,949.73, 215,210.70 and 84,329.80

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Solution

The fourth proportional to 155,949.73, 215,210.70 and 84,329.80 is: 116,375.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,949.73 : 215,210.70 = 84,329.80 : x
  2. Step 2: Convert to fraction form
    155,949.73/215,210.70 = 84,329.80/x
  3. Step 3: Cross multiply
    155,949.73x = 215,210.70 × 84,329.80
  4. Step 4: Simplify right side
    155,949.73x = 18,148,675,288.86
  5. Step 5: Solve for x
    x = 18,148,675,288.86/155,949.73
  6. Step 6: Final answer
    x = 116,375.16

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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.