Home / 155,918.03-215,166.83-84,298.04

Finding the Fourth Proportional to 155,918.03, 215,166.83 and 84,298.04

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Solution

The fourth proportional to 155,918.03, 215,166.83 and 84,298.04 is: 116,331.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,918.03 : 215,166.83 = 84,298.04 : x
  2. Step 2: Convert to fraction form
    155,918.03/215,166.83 = 84,298.04/x
  3. Step 3: Cross multiply
    155,918.03x = 215,166.83 × 84,298.04
  4. Step 4: Simplify right side
    155,918.03x = 18,138,140,544.69
  5. Step 5: Solve for x
    x = 18,138,140,544.69/155,918.03
  6. Step 6: Final answer
    x = 116,331.26

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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.