Home / 156,015.75-215,301.57-84,395.60

Finding the Fourth Proportional to 156,015.75, 215,301.57 and 84,395.60

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Solution

The fourth proportional to 156,015.75, 215,301.57 and 84,395.60 is: 116,465.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,015.75 : 215,301.57 = 84,395.60 : x
  2. Step 2: Convert to fraction form
    156,015.75/215,301.57 = 84,395.60/x
  3. Step 3: Cross multiply
    156,015.75x = 215,301.57 × 84,395.60
  4. Step 4: Simplify right side
    156,015.75x = 18,170,504,595.48
  5. Step 5: Solve for x
    x = 18,170,504,595.48/156,015.75
  6. Step 6: Final answer
    x = 116,465.83

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1.5x scale

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.