Home / 115,997.39-160,089.68-65,023.88

Finding the Fourth Proportional to 115,997.39, 160,089.68 and 65,023.88

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Solution

The fourth proportional to 115,997.39, 160,089.68 and 65,023.88 is: 89,740.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,997.39 : 160,089.68 = 65,023.88 : x
  2. Step 2: Convert to fraction form
    115,997.39/160,089.68 = 65,023.88/x
  3. Step 3: Cross multiply
    115,997.39x = 160,089.68 × 65,023.88
  4. Step 4: Simplify right side
    115,997.39x = 10,409,652,216.66
  5. Step 5: Solve for x
    x = 10,409,652,216.66/115,997.39
  6. Step 6: Final answer
    x = 89,740.40

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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.