Home / 83,009.16-113,973.88-80,844.12

Finding the Fourth Proportional to 83,009.16, 113,973.88 and 80,844.12

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Solution

The fourth proportional to 83,009.16, 113,973.88 and 80,844.12 is: 111,001.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,009.16 : 113,973.88 = 80,844.12 : x
  2. Step 2: Convert to fraction form
    83,009.16/113,973.88 = 80,844.12/x
  3. Step 3: Cross multiply
    83,009.16x = 113,973.88 × 80,844.12
  4. Step 4: Simplify right side
    83,009.16x = 9,214,118,031.59
  5. Step 5: Solve for x
    x = 9,214,118,031.59/83,009.16
  6. Step 6: Final answer
    x = 111,001.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.