Home / 109,889.60-164,861.40-31,002.80

Finding the Fourth Proportional to 109,889.60, 164,861.40 and 31,002.80

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Solution

The fourth proportional to 109,889.60, 164,861.40 and 31,002.80 is: 46,511.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,889.60 : 164,861.40 = 31,002.80 : x
  2. Step 2: Convert to fraction form
    109,889.60/164,861.40 = 31,002.80/x
  3. Step 3: Cross multiply
    109,889.60x = 164,861.40 × 31,002.80
  4. Step 4: Simplify right side
    109,889.60x = 5,111,165,011.92
  5. Step 5: Solve for x
    x = 5,111,165,011.92/109,889.60
  6. Step 6: Final answer
    x = 46,511.82

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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.