Home / 115,426.77-159,296.99-64,449.54

Finding the Fourth Proportional to 115,426.77, 159,296.99 and 64,449.54

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Solution

The fourth proportional to 115,426.77, 159,296.99 and 64,449.54 is: 88,944.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,426.77 : 159,296.99 = 64,449.54 : x
  2. Step 2: Convert to fraction form
    115,426.77/159,296.99 = 64,449.54/x
  3. Step 3: Cross multiply
    115,426.77x = 159,296.99 × 64,449.54
  4. Step 4: Simplify right side
    115,426.77x = 10,266,617,728.88
  5. Step 5: Solve for x
    x = 10,266,617,728.88/115,426.77
  6. Step 6: Final answer
    x = 88,944.86

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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.