Home / 126,700.48-189,919.49-104,278.26

Finding the Fourth Proportional to 126,700.48, 189,919.49 and 104,278.26

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Solution

The fourth proportional to 126,700.48, 189,919.49 and 104,278.26 is: 156,309.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,700.48 : 189,919.49 = 104,278.26 : x
  2. Step 2: Convert to fraction form
    126,700.48/189,919.49 = 104,278.26/x
  3. Step 3: Cross multiply
    126,700.48x = 189,919.49 × 104,278.26
  4. Step 4: Simplify right side
    126,700.48x = 19,804,473,957.29
  5. Step 5: Solve for x
    x = 19,804,473,957.29/126,700.48
  6. Step 6: Final answer
    x = 156,309.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.