Home / 122,979.70-184,437.15-38,739.70

Finding the Fourth Proportional to 122,979.70, 184,437.15 and 38,739.70

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Solution

The fourth proportional to 122,979.70, 184,437.15 and 38,739.70 is: 58,099.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,979.70 : 184,437.15 = 38,739.70 : x
  2. Step 2: Convert to fraction form
    122,979.70/184,437.15 = 38,739.70/x
  3. Step 3: Cross multiply
    122,979.70x = 184,437.15 × 38,739.70
  4. Step 4: Simplify right side
    122,979.70x = 7,145,039,859.86
  5. Step 5: Solve for x
    x = 7,145,039,859.86/122,979.70
  6. Step 6: Final answer
    x = 58,099.34

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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.