Home / 195,643.20-293,270.40-90,278.40

Finding the Fourth Proportional to 195,643.20, 293,270.40 and 90,278.40

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Solution

The fourth proportional to 195,643.20, 293,270.40 and 90,278.40 is: 135,327.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,643.20 : 293,270.40 = 90,278.40 : x
  2. Step 2: Convert to fraction form
    195,643.20/293,270.40 = 90,278.40/x
  3. Step 3: Cross multiply
    195,643.20x = 293,270.40 × 90,278.40
  4. Step 4: Simplify right side
    195,643.20x = 26,475,982,479.36
  5. Step 5: Solve for x
    x = 26,475,982,479.36/195,643.20
  6. Step 6: Final answer
    x = 135,327.90

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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.