Home / 115,091.99-158,771.93-89,422.68

Finding the Fourth Proportional to 115,091.99, 158,771.93 and 89,422.68

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Solution

The fourth proportional to 115,091.99, 158,771.93 and 89,422.68 is: 123,360.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,091.99 : 158,771.93 = 89,422.68 : x
  2. Step 2: Convert to fraction form
    115,091.99/158,771.93 = 89,422.68/x
  3. Step 3: Cross multiply
    115,091.99x = 158,771.93 × 89,422.68
  4. Step 4: Simplify right side
    115,091.99x = 14,197,812,109.86
  5. Step 5: Solve for x
    x = 14,197,812,109.86/115,091.99
  6. Step 6: Final answer
    x = 123,360.56

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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.