Home / 90,958.13-136,270.94-65,936.11

Finding the Fourth Proportional to 90,958.13, 136,270.94 and 65,936.11

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Solution

The fourth proportional to 90,958.13, 136,270.94 and 65,936.11 is: 98,783.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,958.13 : 136,270.94 = 65,936.11 : x
  2. Step 2: Convert to fraction form
    90,958.13/136,270.94 = 65,936.11/x
  3. Step 3: Cross multiply
    90,958.13x = 136,270.94 × 65,936.11
  4. Step 4: Simplify right side
    90,958.13x = 8,985,176,498.75
  5. Step 5: Solve for x
    x = 8,985,176,498.75/90,958.13
  6. Step 6: Final answer
    x = 98,783.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.