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Finding the Fourth Proportional to 147,372.35, 203,373.81 and 80,304.35

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Solution

The fourth proportional to 147,372.35, 203,373.81 and 80,304.35 is: 110,819.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,372.35 : 203,373.81 = 80,304.35 : x
  2. Step 2: Convert to fraction form
    147,372.35/203,373.81 = 80,304.35/x
  3. Step 3: Cross multiply
    147,372.35x = 203,373.81 × 80,304.35
  4. Step 4: Simplify right side
    147,372.35x = 16,331,802,127.51
  5. Step 5: Solve for x
    x = 16,331,802,127.51/147,372.35
  6. Step 6: Final answer
    x = 110,819.99

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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.