Home / 98,110.82-135,516.58-85,338.74

Finding the Fourth Proportional to 98,110.82, 135,516.58 and 85,338.74

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Solution

The fourth proportional to 98,110.82, 135,516.58 and 85,338.74 is: 117,875.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,110.82 : 135,516.58 = 85,338.74 : x
  2. Step 2: Convert to fraction form
    98,110.82/135,516.58 = 85,338.74/x
  3. Step 3: Cross multiply
    98,110.82x = 135,516.58 × 85,338.74
  4. Step 4: Simplify right side
    98,110.82x = 11,564,814,186.31
  5. Step 5: Solve for x
    x = 11,564,814,186.31/98,110.82
  6. Step 6: Final answer
    x = 117,875.01

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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.