Home / 98,016.05-135,309.69-65,738.90

Finding the Fourth Proportional to 98,016.05, 135,309.69 and 65,738.90

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Solution

The fourth proportional to 98,016.05, 135,309.69 and 65,738.90 is: 90,751.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,016.05 : 135,309.69 = 65,738.90 : x
  2. Step 2: Convert to fraction form
    98,016.05/135,309.69 = 65,738.90/x
  3. Step 3: Cross multiply
    98,016.05x = 135,309.69 × 65,738.90
  4. Step 4: Simplify right side
    98,016.05x = 8,895,110,518.22
  5. Step 5: Solve for x
    x = 8,895,110,518.22/98,016.05
  6. Step 6: Final answer
    x = 90,751.57

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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.