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Finding the Fourth Proportional to 160,143.75, 220,996.76 and 88,520.31

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Solution

The fourth proportional to 160,143.75, 220,996.76 and 88,520.31 is: 122,157.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,143.75 : 220,996.76 = 88,520.31 : x
  2. Step 2: Convert to fraction form
    160,143.75/220,996.76 = 88,520.31/x
  3. Step 3: Cross multiply
    160,143.75x = 220,996.76 × 88,520.31
  4. Step 4: Simplify right side
    160,143.75x = 19,562,701,261.59
  5. Step 5: Solve for x
    x = 19,562,701,261.59/160,143.75
  6. Step 6: Final answer
    x = 122,157.13

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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.