Home / 156,452-215,903.56-84,831.92

Finding the Fourth Proportional to 156,452, 215,903.56 and 84,831.92

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Solution

The fourth proportional to 156,452, 215,903.56 and 84,831.92 is: 117,067.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,452 : 215,903.56 = 84,831.92 : x
  2. Step 2: Convert to fraction form
    156,452/215,903.56 = 84,831.92/x
  3. Step 3: Cross multiply
    156,452x = 215,903.56 × 84,831.92
  4. Step 4: Simplify right side
    156,452x = 18,315,513,529.64
  5. Step 5: Solve for x
    x = 18,315,513,529.64/156,452
  6. Step 6: Final answer
    x = 117,067.94

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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.