Home / 149,857.92-223,518.60-129,978.36

Finding the Fourth Proportional to 149,857.92, 223,518.60 and 129,978.36

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Solution

The fourth proportional to 149,857.92, 223,518.60 and 129,978.36 is: 193,867.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,857.92 : 223,518.60 = 129,978.36 : x
  2. Step 2: Convert to fraction form
    149,857.92/223,518.60 = 129,978.36/x
  3. Step 3: Cross multiply
    149,857.92x = 223,518.60 × 129,978.36
  4. Step 4: Simplify right side
    149,857.92x = 29,052,581,057.50
  5. Step 5: Solve for x
    x = 29,052,581,057.50/149,857.92
  6. Step 6: Final answer
    x = 193,867.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.