Home / 158,274.34-218,418.01-90,291.19

Finding the Fourth Proportional to 158,274.34, 218,418.01 and 90,291.19

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Solution

The fourth proportional to 158,274.34, 218,418.01 and 90,291.19 is: 124,601.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,274.34 : 218,418.01 = 90,291.19 : x
  2. Step 2: Convert to fraction form
    158,274.34/218,418.01 = 90,291.19/x
  3. Step 3: Cross multiply
    158,274.34x = 218,418.01 × 90,291.19
  4. Step 4: Simplify right side
    158,274.34x = 19,721,222,040.33
  5. Step 5: Solve for x
    x = 19,721,222,040.33/158,274.34
  6. Step 6: Final answer
    x = 124,601.51

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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.