Home / 106,856.54-147,529.21-68,631.50

Finding the Fourth Proportional to 106,856.54, 147,529.21 and 68,631.50

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Solution

The fourth proportional to 106,856.54, 147,529.21 and 68,631.50 is: 94,754.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,856.54 : 147,529.21 = 68,631.50 : x
  2. Step 2: Convert to fraction form
    106,856.54/147,529.21 = 68,631.50/x
  3. Step 3: Cross multiply
    106,856.54x = 147,529.21 × 68,631.50
  4. Step 4: Simplify right side
    106,856.54x = 10,125,150,976.12
  5. Step 5: Solve for x
    x = 10,125,150,976.12/106,856.54
  6. Step 6: Final answer
    x = 94,754.62

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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.