Home / 146,619.40-202,335.78-79,551.40

Finding the Fourth Proportional to 146,619.40, 202,335.78 and 79,551.40

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Solution

The fourth proportional to 146,619.40, 202,335.78 and 79,551.40 is: 109,781.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,619.40 : 202,335.78 = 79,551.40 : x
  2. Step 2: Convert to fraction form
    146,619.40/202,335.78 = 79,551.40/x
  3. Step 3: Cross multiply
    146,619.40x = 202,335.78 × 79,551.40
  4. Step 4: Simplify right side
    146,619.40x = 16,096,094,569.09
  5. Step 5: Solve for x
    x = 16,096,094,569.09/146,619.40
  6. Step 6: Final answer
    x = 109,781.48

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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.