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Finding the Fourth Proportional to 136,904.40, 204,953.40 and 101,998.80

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Solution

The fourth proportional to 136,904.40, 204,953.40 and 101,998.80 is: 152,697.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,904.40 : 204,953.40 = 101,998.80 : x
  2. Step 2: Convert to fraction form
    136,904.40/204,953.40 = 101,998.80/x
  3. Step 3: Cross multiply
    136,904.40x = 204,953.40 × 101,998.80
  4. Step 4: Simplify right side
    136,904.40x = 20,905,000,855.92
  5. Step 5: Solve for x
    x = 20,905,000,855.92/136,904.40
  6. Step 6: Final answer
    x = 152,697.80

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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.