Home / 137,983.65-190,426.19-90,365.37

Finding the Fourth Proportional to 137,983.65, 190,426.19 and 90,365.37

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Solution

The fourth proportional to 137,983.65, 190,426.19 and 90,365.37 is: 124,709.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,983.65 : 190,426.19 = 90,365.37 : x
  2. Step 2: Convert to fraction form
    137,983.65/190,426.19 = 90,365.37/x
  3. Step 3: Cross multiply
    137,983.65x = 190,426.19 × 90,365.37
  4. Step 4: Simplify right side
    137,983.65x = 17,207,932,665.21
  5. Step 5: Solve for x
    x = 17,207,932,665.21/137,983.65
  6. Step 6: Final answer
    x = 124,709.94

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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.