Home / 98,639.87-136,131.32-60,399.23

Finding the Fourth Proportional to 98,639.87, 136,131.32 and 60,399.23

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Solution

The fourth proportional to 98,639.87, 136,131.32 and 60,399.23 is: 83,356.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,639.87 : 136,131.32 = 60,399.23 : x
  2. Step 2: Convert to fraction form
    98,639.87/136,131.32 = 60,399.23/x
  3. Step 3: Cross multiply
    98,639.87x = 136,131.32 × 60,399.23
  4. Step 4: Simplify right side
    98,639.87x = 8,222,226,906.88
  5. Step 5: Solve for x
    x = 8,222,226,906.88/98,639.87
  6. Step 6: Final answer
    x = 83,356.02

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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.