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Finding the Fourth Proportional to 102,600.84, 153,864.42 and 43,440.72

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Solution

The fourth proportional to 102,600.84, 153,864.42 and 43,440.72 is: 65,145.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,600.84 : 153,864.42 = 43,440.72 : x
  2. Step 2: Convert to fraction form
    102,600.84/153,864.42 = 43,440.72/x
  3. Step 3: Cross multiply
    102,600.84x = 153,864.42 × 43,440.72
  4. Step 4: Simplify right side
    102,600.84x = 6,683,981,187.18
  5. Step 5: Solve for x
    x = 6,683,981,187.18/102,600.84
  6. Step 6: Final answer
    x = 65,145.48

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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.