Home / 146,708.20-202,479.78-90,159.40

Finding the Fourth Proportional to 146,708.20, 202,479.78 and 90,159.40

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Solution

The fourth proportional to 146,708.20, 202,479.78 and 90,159.40 is: 124,433.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,708.20 : 202,479.78 = 90,159.40 : x
  2. Step 2: Convert to fraction form
    146,708.20/202,479.78 = 90,159.40/x
  3. Step 3: Cross multiply
    146,708.20x = 202,479.78 × 90,159.40
  4. Step 4: Simplify right side
    146,708.20x = 18,255,455,476.93
  5. Step 5: Solve for x
    x = 18,255,455,476.93/146,708.20
  6. Step 6: Final answer
    x = 124,433.78

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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.