Home / 115,355.89-159,194.94-66,954.19

Finding the Fourth Proportional to 115,355.89, 159,194.94 and 66,954.19

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Solution

The fourth proportional to 115,355.89, 159,194.94 and 66,954.19 is: 92,398.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,355.89 : 159,194.94 = 66,954.19 : x
  2. Step 2: Convert to fraction form
    115,355.89/159,194.94 = 66,954.19/x
  3. Step 3: Cross multiply
    115,355.89x = 159,194.94 × 66,954.19
  4. Step 4: Simplify right side
    115,355.89x = 10,658,768,259.80
  5. Step 5: Solve for x
    x = 10,658,768,259.80/115,355.89
  6. Step 6: Final answer
    x = 92,398.99

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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.