Home / 98,804.20-148,206.30-91,805.80

Finding the Fourth Proportional to 98,804.20, 148,206.30 and 91,805.80

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Solution

The fourth proportional to 98,804.20, 148,206.30 and 91,805.80 is: 137,708.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,804.20 : 148,206.30 = 91,805.80 : x
  2. Step 2: Convert to fraction form
    98,804.20/148,206.30 = 91,805.80/x
  3. Step 3: Cross multiply
    98,804.20x = 148,206.30 × 91,805.80
  4. Step 4: Simplify right side
    98,804.20x = 13,606,197,936.54
  5. Step 5: Solve for x
    x = 13,606,197,936.54/98,804.20
  6. Step 6: Final answer
    x = 137,708.70

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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.