Home / 84,313.92-116,149.86-72,175.80

Finding the Fourth Proportional to 84,313.92, 116,149.86 and 72,175.80

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Solution

The fourth proportional to 84,313.92, 116,149.86 and 72,175.80 is: 99,428.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,313.92 : 116,149.86 = 72,175.80 : x
  2. Step 2: Convert to fraction form
    84,313.92/116,149.86 = 72,175.80/x
  3. Step 3: Cross multiply
    84,313.92x = 116,149.86 × 72,175.80
  4. Step 4: Simplify right side
    84,313.92x = 8,383,209,065.39
  5. Step 5: Solve for x
    x = 8,383,209,065.39/84,313.92
  6. Step 6: Final answer
    x = 99,428.53

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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.