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Finding the Fourth Proportional to 158,115, 218,250.54 and 113,532.60

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Solution

The fourth proportional to 158,115, 218,250.54 and 113,532.60 is: 156,712.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,115 : 218,250.54 = 113,532.60 : x
  2. Step 2: Convert to fraction form
    158,115/218,250.54 = 113,532.60/x
  3. Step 3: Cross multiply
    158,115x = 218,250.54 × 113,532.60
  4. Step 4: Simplify right side
    158,115x = 24,778,551,257.60
  5. Step 5: Solve for x
    x = 24,778,551,257.60/158,115
  6. Step 6: Final answer
    x = 156,712.21

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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.