Home / 109,856.70-151,579.89-64,542.06

Finding the Fourth Proportional to 109,856.70, 151,579.89 and 64,542.06

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Solution

The fourth proportional to 109,856.70, 151,579.89 and 64,542.06 is: 89,054.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,856.70 : 151,579.89 = 64,542.06 : x
  2. Step 2: Convert to fraction form
    109,856.70/151,579.89 = 64,542.06/x
  3. Step 3: Cross multiply
    109,856.70x = 151,579.89 × 64,542.06
  4. Step 4: Simplify right side
    109,856.70x = 9,783,278,355.17
  5. Step 5: Solve for x
    x = 9,783,278,355.17/109,856.70
  6. Step 6: Final answer
    x = 89,054.91

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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.