Home / 137,080.22-189,192.11-83,382.08

Finding the Fourth Proportional to 137,080.22, 189,192.11 and 83,382.08

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Solution

The fourth proportional to 137,080.22, 189,192.11 and 83,382.08 is: 115,080.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,080.22 : 189,192.11 = 83,382.08 : x
  2. Step 2: Convert to fraction form
    137,080.22/189,192.11 = 83,382.08/x
  3. Step 3: Cross multiply
    137,080.22x = 189,192.11 × 83,382.08
  4. Step 4: Simplify right side
    137,080.22x = 15,775,230,288.52
  5. Step 5: Solve for x
    x = 15,775,230,288.52/137,080.22
  6. Step 6: Final answer
    x = 115,080.29

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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.