Home / 195,188.80-292,832-90,081.28

Finding the Fourth Proportional to 195,188.80, 292,832 and 90,081.28

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Solution

The fourth proportional to 195,188.80, 292,832 and 90,081.28 is: 135,144.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,188.80 : 292,832 = 90,081.28 : x
  2. Step 2: Convert to fraction form
    195,188.80/292,832 = 90,081.28/x
  3. Step 3: Cross multiply
    195,188.80x = 292,832 × 90,081.28
  4. Step 4: Simplify right side
    195,188.80x = 26,378,681,384.96
  5. Step 5: Solve for x
    x = 26,378,681,384.96/195,188.80
  6. Step 6: Final answer
    x = 135,144.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.