Home / 98,445.52-135,568.91-85,518.86

Finding the Fourth Proportional to 98,445.52, 135,568.91 and 85,518.86

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Solution

The fourth proportional to 98,445.52, 135,568.91 and 85,518.86 is: 117,767.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,445.52 : 135,568.91 = 85,518.86 : x
  2. Step 2: Convert to fraction form
    98,445.52/135,568.91 = 85,518.86/x
  3. Step 3: Cross multiply
    98,445.52x = 135,568.91 × 85,518.86
  4. Step 4: Simplify right side
    98,445.52x = 11,593,699,187.36
  5. Step 5: Solve for x
    x = 11,593,699,187.36/98,445.52
  6. Step 6: Final answer
    x = 117,767.67

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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.