Home / 155,922.13-215,172.35-84,301.98

Finding the Fourth Proportional to 155,922.13, 215,172.35 and 84,301.98

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Solution

The fourth proportional to 155,922.13, 215,172.35 and 84,301.98 is: 116,336.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,922.13 : 215,172.35 = 84,301.98 : x
  2. Step 2: Convert to fraction form
    155,922.13/215,172.35 = 84,301.98/x
  3. Step 3: Cross multiply
    155,922.13x = 215,172.35 × 84,301.98
  4. Step 4: Simplify right side
    155,922.13x = 18,139,453,648.88
  5. Step 5: Solve for x
    x = 18,139,453,648.88/155,922.13
  6. Step 6: Final answer
    x = 116,336.62

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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.