Home / 84,161.18-116,210.67-80,355.80

Finding the Fourth Proportional to 84,161.18, 116,210.67 and 80,355.80

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Solution

The fourth proportional to 84,161.18, 116,210.67 and 80,355.80 is: 110,956.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,161.18 : 116,210.67 = 80,355.80 : x
  2. Step 2: Convert to fraction form
    84,161.18/116,210.67 = 80,355.80/x
  3. Step 3: Cross multiply
    84,161.18x = 116,210.67 × 80,355.80
  4. Step 4: Simplify right side
    84,161.18x = 9,338,201,345.58
  5. Step 5: Solve for x
    x = 9,338,201,345.58/84,161.18
  6. Step 6: Final answer
    x = 110,956.16

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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.