Home / 103,071.68-154,610.04-58,379.12

Finding the Fourth Proportional to 103,071.68, 154,610.04 and 58,379.12

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Solution

The fourth proportional to 103,071.68, 154,610.04 and 58,379.12 is: 87,570.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,071.68 : 154,610.04 = 58,379.12 : x
  2. Step 2: Convert to fraction form
    103,071.68/154,610.04 = 58,379.12/x
  3. Step 3: Cross multiply
    103,071.68x = 154,610.04 × 58,379.12
  4. Step 4: Simplify right side
    103,071.68x = 9,025,998,078.36
  5. Step 5: Solve for x
    x = 9,025,998,078.36/103,071.68
  6. Step 6: Final answer
    x = 87,570.11

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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.