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Finding the Fourth Proportional to 98,069.60, 147,104.40 and 68,545.10

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Solution

The fourth proportional to 98,069.60, 147,104.40 and 68,545.10 is: 102,817.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,069.60 : 147,104.40 = 68,545.10 : x
  2. Step 2: Convert to fraction form
    98,069.60/147,104.40 = 68,545.10/x
  3. Step 3: Cross multiply
    98,069.60x = 147,104.40 × 68,545.10
  4. Step 4: Simplify right side
    98,069.60x = 10,083,285,072.92
  5. Step 5: Solve for x
    x = 10,083,285,072.92/98,069.60
  6. Step 6: Final answer
    x = 102,817.65

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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.