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Finding the Fourth Proportional to 158,937, 219,333.21 and 87,317.16

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Solution

The fourth proportional to 158,937, 219,333.21 and 87,317.16 is: 120,497.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,937 : 219,333.21 = 87,317.16 : x
  2. Step 2: Convert to fraction form
    158,937/219,333.21 = 87,317.16/x
  3. Step 3: Cross multiply
    158,937x = 219,333.21 × 87,317.16
  4. Step 4: Simplify right side
    158,937x = 19,151,552,990.88
  5. Step 5: Solve for x
    x = 19,151,552,990.88/158,937
  6. Step 6: Final answer
    x = 120,497.76

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.