Home / 99,739.26-149,412.06-74,807.46

Finding the Fourth Proportional to 99,739.26, 149,412.06 and 74,807.46

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Solution

The fourth proportional to 99,739.26, 149,412.06 and 74,807.46 is: 112,063.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,739.26 : 149,412.06 = 74,807.46 : x
  2. Step 2: Convert to fraction form
    99,739.26/149,412.06 = 74,807.46/x
  3. Step 3: Cross multiply
    99,739.26x = 149,412.06 × 74,807.46
  4. Step 4: Simplify right side
    99,739.26x = 11,177,136,701.97
  5. Step 5: Solve for x
    x = 11,177,136,701.97/99,739.26
  6. Step 6: Final answer
    x = 112,063.56

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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.