Home / 149,660.09-224,529.03-74,777.21

Finding the Fourth Proportional to 149,660.09, 224,529.03 and 74,777.21

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Solution

The fourth proportional to 149,660.09, 224,529.03 and 74,777.21 is: 112,185.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,660.09 : 224,529.03 = 74,777.21 : x
  2. Step 2: Convert to fraction form
    149,660.09/224,529.03 = 74,777.21/x
  3. Step 3: Cross multiply
    149,660.09x = 224,529.03 × 74,777.21
  4. Step 4: Simplify right side
    149,660.09x = 16,789,654,146.75
  5. Step 5: Solve for x
    x = 16,789,654,146.75/149,660.09
  6. Step 6: Final answer
    x = 112,185.25

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1.5x scale

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.