Home / 145,861.22-201,288.48-78,793.22

Finding the Fourth Proportional to 145,861.22, 201,288.48 and 78,793.22

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Solution

The fourth proportional to 145,861.22, 201,288.48 and 78,793.22 is: 108,734.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,861.22 : 201,288.48 = 78,793.22 : x
  2. Step 2: Convert to fraction form
    145,861.22/201,288.48 = 78,793.22/x
  3. Step 3: Cross multiply
    145,861.22x = 201,288.48 × 78,793.22
  4. Step 4: Simplify right side
    145,861.22x = 15,860,166,481.66
  5. Step 5: Solve for x
    x = 15,860,166,481.66/145,861.22
  6. Step 6: Final answer
    x = 108,734.64

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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.