Home / 107,144.03-147,873.79-66,321.25

Finding the Fourth Proportional to 107,144.03, 147,873.79 and 66,321.25

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Solution

The fourth proportional to 107,144.03, 147,873.79 and 66,321.25 is: 91,532.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,144.03 : 147,873.79 = 66,321.25 : x
  2. Step 2: Convert to fraction form
    107,144.03/147,873.79 = 66,321.25/x
  3. Step 3: Cross multiply
    107,144.03x = 147,873.79 × 66,321.25
  4. Step 4: Simplify right side
    107,144.03x = 9,807,174,494.78
  5. Step 5: Solve for x
    x = 9,807,174,494.78/107,144.03
  6. Step 6: Final answer
    x = 91,532.62

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1.5x scale

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.