Home / 90,800.20-125,167.71-71,646.94

Finding the Fourth Proportional to 90,800.20, 125,167.71 and 71,646.94

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Solution

The fourth proportional to 90,800.20, 125,167.71 and 71,646.94 is: 98,765.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,800.20 : 125,167.71 = 71,646.94 : x
  2. Step 2: Convert to fraction form
    90,800.20/125,167.71 = 71,646.94/x
  3. Step 3: Cross multiply
    90,800.20x = 125,167.71 × 71,646.94
  4. Step 4: Simplify right side
    90,800.20x = 8,967,883,408.31
  5. Step 5: Solve for x
    x = 8,967,883,408.31/90,800.20
  6. Step 6: Final answer
    x = 98,765.02

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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.