Home / 155,817.20-215,027.73-84,197.22

Finding the Fourth Proportional to 155,817.20, 215,027.73 and 84,197.22

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Solution

The fourth proportional to 155,817.20, 215,027.73 and 84,197.22 is: 116,192.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,817.20 : 215,027.73 = 84,197.22 : x
  2. Step 2: Convert to fraction form
    155,817.20/215,027.73 = 84,197.22/x
  3. Step 3: Cross multiply
    155,817.20x = 215,027.73 × 84,197.22
  4. Step 4: Simplify right side
    155,817.20x = 18,104,736,340.85
  5. Step 5: Solve for x
    x = 18,104,736,340.85/155,817.20
  6. Step 6: Final answer
    x = 116,192.16

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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.