Home / 98,803.98-136,428.09-91,247.54

Finding the Fourth Proportional to 98,803.98, 136,428.09 and 91,247.54

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Solution

The fourth proportional to 98,803.98, 136,428.09 and 91,247.54 is: 125,994.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,803.98 : 136,428.09 = 91,247.54 : x
  2. Step 2: Convert to fraction form
    98,803.98/136,428.09 = 91,247.54/x
  3. Step 3: Cross multiply
    98,803.98x = 136,428.09 × 91,247.54
  4. Step 4: Simplify right side
    98,803.98x = 12,448,727,940.47
  5. Step 5: Solve for x
    x = 12,448,727,940.47/98,803.98
  6. Step 6: Final answer
    x = 125,994.20

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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.