Home / 98,730.54-136,102.68-69,961.32

Finding the Fourth Proportional to 98,730.54, 136,102.68 and 69,961.32

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Solution

The fourth proportional to 98,730.54, 136,102.68 and 69,961.32 is: 96,443.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,730.54 : 136,102.68 = 69,961.32 : x
  2. Step 2: Convert to fraction form
    98,730.54/136,102.68 = 69,961.32/x
  3. Step 3: Cross multiply
    98,730.54x = 136,102.68 × 69,961.32
  4. Step 4: Simplify right side
    98,730.54x = 9,521,923,148.34
  5. Step 5: Solve for x
    x = 9,521,923,148.34/98,730.54
  6. Step 6: Final answer
    x = 96,443.54

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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.