Home / 109,427.20-164,140.76-84,503.60

Finding the Fourth Proportional to 109,427.20, 164,140.76 and 84,503.60

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Solution

The fourth proportional to 109,427.20, 164,140.76 and 84,503.60 is: 126,755.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,427.20 : 164,140.76 = 84,503.60 : x
  2. Step 2: Convert to fraction form
    109,427.20/164,140.76 = 84,503.60/x
  3. Step 3: Cross multiply
    109,427.20x = 164,140.76 × 84,503.60
  4. Step 4: Simplify right side
    109,427.20x = 13,870,485,126.74
  5. Step 5: Solve for x
    x = 13,870,485,126.74/109,427.20
  6. Step 6: Final answer
    x = 126,755.37

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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.