Home / 98,005.20-146,856.60-72,927.60

Finding the Fourth Proportional to 98,005.20, 146,856.60 and 72,927.60

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Solution

The fourth proportional to 98,005.20, 146,856.60 and 72,927.60 is: 109,278.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,005.20 : 146,856.60 = 72,927.60 : x
  2. Step 2: Convert to fraction form
    98,005.20/146,856.60 = 72,927.60/x
  3. Step 3: Cross multiply
    98,005.20x = 146,856.60 × 72,927.60
  4. Step 4: Simplify right side
    98,005.20x = 10,709,899,382.16
  5. Step 5: Solve for x
    x = 10,709,899,382.16/98,005.20
  6. Step 6: Final answer
    x = 109,278.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.