Home / 98,028.35-146,378.52-77,811.02

Finding the Fourth Proportional to 98,028.35, 146,378.52 and 77,811.02

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Solution

The fourth proportional to 98,028.35, 146,378.52 and 77,811.02 is: 116,189.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,028.35 : 146,378.52 = 77,811.02 : x
  2. Step 2: Convert to fraction form
    98,028.35/146,378.52 = 77,811.02/x
  3. Step 3: Cross multiply
    98,028.35x = 146,378.52 × 77,811.02
  4. Step 4: Simplify right side
    98,028.35x = 11,389,861,947.29
  5. Step 5: Solve for x
    x = 11,389,861,947.29/98,028.35
  6. Step 6: Final answer
    x = 116,189.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.