Home / 195,918.32-293,713.64-90,812.72

Finding the Fourth Proportional to 195,918.32, 293,713.64 and 90,812.72

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Solution

The fourth proportional to 195,918.32, 293,713.64 and 90,812.72 is: 136,143.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,918.32 : 293,713.64 = 90,812.72 : x
  2. Step 2: Convert to fraction form
    195,918.32/293,713.64 = 90,812.72/x
  3. Step 3: Cross multiply
    195,918.32x = 293,713.64 × 90,812.72
  4. Step 4: Simplify right side
    195,918.32x = 26,672,934,549.50
  5. Step 5: Solve for x
    x = 26,672,934,549.50/195,918.32
  6. Step 6: Final answer
    x = 136,143.14

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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.