Home / 205,739.28-283,947.48-115,130.16

Finding the Fourth Proportional to 205,739.28, 283,947.48 and 115,130.16

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Solution

The fourth proportional to 205,739.28, 283,947.48 and 115,130.16 is: 158,894.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,739.28 : 283,947.48 = 115,130.16 : x
  2. Step 2: Convert to fraction form
    205,739.28/283,947.48 = 115,130.16/x
  3. Step 3: Cross multiply
    205,739.28x = 283,947.48 × 115,130.16
  4. Step 4: Simplify right side
    205,739.28x = 32,690,918,804.00
  5. Step 5: Solve for x
    x = 32,690,918,804.00/205,739.28
  6. Step 6: Final answer
    x = 158,894.88

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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.