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Finding the Fourth Proportional to 140,468.29, 193,858.90 and 80,058.40

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Solution

The fourth proportional to 140,468.29, 193,858.90 and 80,058.40 is: 110,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,468.29 : 193,858.90 = 80,058.40 : x
  2. Step 2: Convert to fraction form
    140,468.29/193,858.90 = 80,058.40/x
  3. Step 3: Cross multiply
    140,468.29x = 193,858.90 × 80,058.40
  4. Step 4: Simplify right side
    140,468.29x = 15,520,032,390.47
  5. Step 5: Solve for x
    x = 15,520,032,390.47/140,468.29
  6. Step 6: Final answer
    x = 110,487.80

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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.