Home / 112,976.99-155,908.17-61,990.02

Finding the Fourth Proportional to 112,976.99, 155,908.17 and 61,990.02

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Solution

The fourth proportional to 112,976.99, 155,908.17 and 61,990.02 is: 85,546.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,976.99 : 155,908.17 = 61,990.02 : x
  2. Step 2: Convert to fraction form
    112,976.99/155,908.17 = 61,990.02/x
  3. Step 3: Cross multiply
    112,976.99x = 155,908.17 × 61,990.02
  4. Step 4: Simplify right side
    112,976.99x = 9,664,751,161.12
  5. Step 5: Solve for x
    x = 9,664,751,161.12/112,976.99
  6. Step 6: Final answer
    x = 85,546.19

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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.