Home / 154,060.77-212,639.37-100,252.37

Finding the Fourth Proportional to 154,060.77, 212,639.37 and 100,252.37

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Solution

The fourth proportional to 154,060.77, 212,639.37 and 100,252.37 is: 138,371.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,060.77 : 212,639.37 = 100,252.37 : x
  2. Step 2: Convert to fraction form
    154,060.77/212,639.37 = 100,252.37/x
  3. Step 3: Cross multiply
    154,060.77x = 212,639.37 × 100,252.37
  4. Step 4: Simplify right side
    154,060.77x = 21,317,599,734.61
  5. Step 5: Solve for x
    x = 21,317,599,734.61/154,060.77
  6. Step 6: Final answer
    x = 138,371.37

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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.