Home / 109,861.56-164,814.60-39,735.78

Finding the Fourth Proportional to 109,861.56, 164,814.60 and 39,735.78

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Solution

The fourth proportional to 109,861.56, 164,814.60 and 39,735.78 is: 59,611.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,861.56 : 164,814.60 = 39,735.78 : x
  2. Step 2: Convert to fraction form
    109,861.56/164,814.60 = 39,735.78/x
  3. Step 3: Cross multiply
    109,861.56x = 164,814.60 × 39,735.78
  4. Step 4: Simplify right side
    109,861.56x = 6,549,036,686.39
  5. Step 5: Solve for x
    x = 6,549,036,686.39/109,861.56
  6. Step 6: Final answer
    x = 59,611.72

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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.