Home / 146,389.56-202,017.60-79,321.56

Finding the Fourth Proportional to 146,389.56, 202,017.60 and 79,321.56

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Solution

The fourth proportional to 146,389.56, 202,017.60 and 79,321.56 is: 109,463.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,389.56 : 202,017.60 = 79,321.56 : x
  2. Step 2: Convert to fraction form
    146,389.56/202,017.60 = 79,321.56/x
  3. Step 3: Cross multiply
    146,389.56x = 202,017.60 × 79,321.56
  4. Step 4: Simplify right side
    146,389.56x = 16,024,351,179.46
  5. Step 5: Solve for x
    x = 16,024,351,179.46/146,389.56
  6. Step 6: Final answer
    x = 109,463.76

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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.