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Finding the Fourth Proportional to 122,969.70, 184,422.15 and 38,729.70

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Solution

The fourth proportional to 122,969.70, 184,422.15 and 38,729.70 is: 58,084.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,969.70 : 184,422.15 = 38,729.70 : x
  2. Step 2: Convert to fraction form
    122,969.70/184,422.15 = 38,729.70/x
  3. Step 3: Cross multiply
    122,969.70x = 184,422.15 × 38,729.70
  4. Step 4: Simplify right side
    122,969.70x = 7,142,614,542.86
  5. Step 5: Solve for x
    x = 7,142,614,542.86/122,969.70
  6. Step 6: Final answer
    x = 58,084.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.