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Finding the Fourth Proportional to 97,601.60, 146,402.40 and 66,108.80

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Solution

The fourth proportional to 97,601.60, 146,402.40 and 66,108.80 is: 99,163.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,601.60 : 146,402.40 = 66,108.80 : x
  2. Step 2: Convert to fraction form
    97,601.60/146,402.40 = 66,108.80/x
  3. Step 3: Cross multiply
    97,601.60x = 146,402.40 × 66,108.80
  4. Step 4: Simplify right side
    97,601.60x = 9,678,486,981.12
  5. Step 5: Solve for x
    x = 9,678,486,981.12/97,601.60
  6. Step 6: Final answer
    x = 99,163.20

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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.