Home / 138,057.92-190,426.27-89,573.23

Finding the Fourth Proportional to 138,057.92, 190,426.27 and 89,573.23

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Solution

The fourth proportional to 138,057.92, 190,426.27 and 89,573.23 is: 123,550.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,057.92 : 190,426.27 = 89,573.23 : x
  2. Step 2: Convert to fraction form
    138,057.92/190,426.27 = 89,573.23/x
  3. Step 3: Cross multiply
    138,057.92x = 190,426.27 × 89,573.23
  4. Step 4: Simplify right side
    138,057.92x = 17,057,095,191.65
  5. Step 5: Solve for x
    x = 17,057,095,191.65/138,057.92
  6. Step 6: Final answer
    x = 123,550.28

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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.