Home / 138,329.06-189,649.82-135,807.17

Finding the Fourth Proportional to 138,329.06, 189,649.82 and 135,807.17

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Solution

The fourth proportional to 138,329.06, 189,649.82 and 135,807.17 is: 186,192.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,329.06 : 189,649.82 = 135,807.17 : x
  2. Step 2: Convert to fraction form
    138,329.06/189,649.82 = 135,807.17/x
  3. Step 3: Cross multiply
    138,329.06x = 189,649.82 × 135,807.17
  4. Step 4: Simplify right side
    138,329.06x = 25,755,804,736.48
  5. Step 5: Solve for x
    x = 25,755,804,736.48/138,329.06
  6. Step 6: Final answer
    x = 186,192.30

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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.