Home / 105,874.12-146,099.74-58,127.20

Finding the Fourth Proportional to 105,874.12, 146,099.74 and 58,127.20

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Solution

The fourth proportional to 105,874.12, 146,099.74 and 58,127.20 is: 80,211.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,874.12 : 146,099.74 = 58,127.20 : x
  2. Step 2: Convert to fraction form
    105,874.12/146,099.74 = 58,127.20/x
  3. Step 3: Cross multiply
    105,874.12x = 146,099.74 × 58,127.20
  4. Step 4: Simplify right side
    105,874.12x = 8,492,368,806.93
  5. Step 5: Solve for x
    x = 8,492,368,806.93/105,874.12
  6. Step 6: Final answer
    x = 80,211.94

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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.