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Finding the Fourth Proportional to 158,802.22, 219,134.02 and 87,179.79

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Solution

The fourth proportional to 158,802.22, 219,134.02 and 87,179.79 is: 120,300.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,802.22 : 219,134.02 = 87,179.79 : x
  2. Step 2: Convert to fraction form
    158,802.22/219,134.02 = 87,179.79/x
  3. Step 3: Cross multiply
    158,802.22x = 219,134.02 × 87,179.79
  4. Step 4: Simplify right side
    158,802.22x = 19,104,057,845.46
  5. Step 5: Solve for x
    x = 19,104,057,845.46/158,802.22
  6. Step 6: Final answer
    x = 120,300.95

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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.