Home / 156,062.25-215,364.36-84,440.70

Finding the Fourth Proportional to 156,062.25, 215,364.36 and 84,440.70

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Solution

The fourth proportional to 156,062.25, 215,364.36 and 84,440.70 is: 116,527.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,062.25 : 215,364.36 = 84,440.70 : x
  2. Step 2: Convert to fraction form
    156,062.25/215,364.36 = 84,440.70/x
  3. Step 3: Cross multiply
    156,062.25x = 215,364.36 × 84,440.70
  4. Step 4: Simplify right side
    156,062.25x = 18,185,517,313.45
  5. Step 5: Solve for x
    x = 18,185,517,313.45/156,062.25
  6. Step 6: Final answer
    x = 116,527.33

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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.