Home / 104,089.75-156,138.95-30,217.75

Finding the Fourth Proportional to 104,089.75, 156,138.95 and 30,217.75

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Solution

The fourth proportional to 104,089.75, 156,138.95 and 30,217.75 is: 45,327.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,089.75 : 156,138.95 = 30,217.75 : x
  2. Step 2: Convert to fraction form
    104,089.75/156,138.95 = 30,217.75/x
  3. Step 3: Cross multiply
    104,089.75x = 156,138.95 × 30,217.75
  4. Step 4: Simplify right side
    104,089.75x = 4,718,167,756.36
  5. Step 5: Solve for x
    x = 4,718,167,756.36/104,089.75
  6. Step 6: Final answer
    x = 45,327.88

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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.