Home / 109,629.20-164,443.80-47,299.70

Finding the Fourth Proportional to 109,629.20, 164,443.80 and 47,299.70

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Solution

The fourth proportional to 109,629.20, 164,443.80 and 47,299.70 is: 70,949.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,629.20 : 164,443.80 = 47,299.70 : x
  2. Step 2: Convert to fraction form
    109,629.20/164,443.80 = 47,299.70/x
  3. Step 3: Cross multiply
    109,629.20x = 164,443.80 × 47,299.70
  4. Step 4: Simplify right side
    109,629.20x = 7,778,142,406.86
  5. Step 5: Solve for x
    x = 7,778,142,406.86/109,629.20
  6. Step 6: Final answer
    x = 70,949.55

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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.