Home / 158,933.61-219,274.89-90,013.65

Finding the Fourth Proportional to 158,933.61, 219,274.89 and 90,013.65

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Solution

The fourth proportional to 158,933.61, 219,274.89 and 90,013.65 is: 124,188.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,933.61 : 219,274.89 = 90,013.65 : x
  2. Step 2: Convert to fraction form
    158,933.61/219,274.89 = 90,013.65/x
  3. Step 3: Cross multiply
    158,933.61x = 219,274.89 × 90,013.65
  4. Step 4: Simplify right side
    158,933.61x = 19,737,733,202.25
  5. Step 5: Solve for x
    x = 19,737,733,202.25/158,933.61
  6. Step 6: Final answer
    x = 124,188.54

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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.