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Finding the Fourth Proportional to 158,024.82, 218,133.55 and 103,580.49

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Solution

The fourth proportional to 158,024.82, 218,133.55 and 103,580.49 is: 142,979.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,024.82 : 218,133.55 = 103,580.49 : x
  2. Step 2: Convert to fraction form
    158,024.82/218,133.55 = 103,580.49/x
  3. Step 3: Cross multiply
    158,024.82x = 218,133.55 × 103,580.49
  4. Step 4: Simplify right side
    158,024.82x = 22,594,379,994.44
  5. Step 5: Solve for x
    x = 22,594,379,994.44/158,024.82
  6. Step 6: Final answer
    x = 142,979.94

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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.