Home / 115,292.68-159,101.94-64,991.56

Finding the Fourth Proportional to 115,292.68, 159,101.94 and 64,991.56

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Solution

The fourth proportional to 115,292.68, 159,101.94 and 64,991.56 is: 89,687.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,292.68 : 159,101.94 = 64,991.56 : x
  2. Step 2: Convert to fraction form
    115,292.68/159,101.94 = 64,991.56/x
  3. Step 3: Cross multiply
    115,292.68x = 159,101.94 × 64,991.56
  4. Step 4: Simplify right side
    115,292.68x = 10,340,283,279.63
  5. Step 5: Solve for x
    x = 10,340,283,279.63/115,292.68
  6. Step 6: Final answer
    x = 89,687.25

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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.