Home / 158,730.39-219,052.20-87,112.95

Finding the Fourth Proportional to 158,730.39, 219,052.20 and 87,112.95

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Solution

The fourth proportional to 158,730.39, 219,052.20 and 87,112.95 is: 120,218.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,730.39 : 219,052.20 = 87,112.95 : x
  2. Step 2: Convert to fraction form
    158,730.39/219,052.20 = 87,112.95/x
  3. Step 3: Cross multiply
    158,730.39x = 219,052.20 × 87,112.95
  4. Step 4: Simplify right side
    158,730.39x = 19,082,283,345.99
  5. Step 5: Solve for x
    x = 19,082,283,345.99/158,730.39
  6. Step 6: Final answer
    x = 120,218.21

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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.