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Finding the Fourth Proportional to 158,655.92, 219,172.92 and 126,782.96

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Solution

The fourth proportional to 158,655.92, 219,172.92 and 126,782.96 is: 175,142.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,655.92 : 219,172.92 = 126,782.96 : x
  2. Step 2: Convert to fraction form
    158,655.92/219,172.92 = 126,782.96/x
  3. Step 3: Cross multiply
    158,655.92x = 219,172.92 × 126,782.96
  4. Step 4: Simplify right side
    158,655.92x = 27,787,391,549.44
  5. Step 5: Solve for x
    x = 27,787,391,549.44/158,655.92
  6. Step 6: Final answer
    x = 175,142.48

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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.