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Finding the Fourth Proportional to 162,571.88, 223,850.64 and 142,315.40

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Solution

The fourth proportional to 162,571.88, 223,850.64 and 142,315.40 is: 195,958.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,571.88 : 223,850.64 = 142,315.40 : x
  2. Step 2: Convert to fraction form
    162,571.88/223,850.64 = 142,315.40/x
  3. Step 3: Cross multiply
    162,571.88x = 223,850.64 × 142,315.40
  4. Step 4: Simplify right side
    162,571.88x = 31,857,393,371.86
  5. Step 5: Solve for x
    x = 31,857,393,371.86/162,571.88
  6. Step 6: Final answer
    x = 195,958.82

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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.