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Finding the Fourth Proportional to 158,573.62, 218,619.90 and 125,976.20

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Solution

The fourth proportional to 158,573.62, 218,619.90 and 125,976.20 is: 173,678.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,573.62 : 218,619.90 = 125,976.20 : x
  2. Step 2: Convert to fraction form
    158,573.62/218,619.90 = 125,976.20/x
  3. Step 3: Cross multiply
    158,573.62x = 218,619.90 × 125,976.20
  4. Step 4: Simplify right side
    158,573.62x = 27,540,902,838.34
  5. Step 5: Solve for x
    x = 27,540,902,838.34/158,573.62
  6. Step 6: Final answer
    x = 173,678.97

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1.5x scale

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.