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Finding the Fourth Proportional to 122,763.48, 184,144.48 and 31,578.74

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Solution

The fourth proportional to 122,763.48, 184,144.48 and 31,578.74 is: 47,367.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,763.48 : 184,144.48 = 31,578.74 : x
  2. Step 2: Convert to fraction form
    122,763.48/184,144.48 = 31,578.74/x
  3. Step 3: Cross multiply
    122,763.48x = 184,144.48 × 31,578.74
  4. Step 4: Simplify right side
    122,763.48x = 5,815,050,656.36
  5. Step 5: Solve for x
    x = 5,815,050,656.36/122,763.48
  6. Step 6: Final answer
    x = 47,367.92

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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.