Home / 225,741.53-311,521.93-123,771.30

Finding the Fourth Proportional to 225,741.53, 311,521.93 and 123,771.30

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Solution

The fourth proportional to 225,741.53, 311,521.93 and 123,771.30 is: 170,803.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,741.53 : 311,521.93 = 123,771.30 : x
  2. Step 2: Convert to fraction form
    225,741.53/311,521.93 = 123,771.30/x
  3. Step 3: Cross multiply
    225,741.53x = 311,521.93 × 123,771.30
  4. Step 4: Simplify right side
    225,741.53x = 38,557,474,254.61
  5. Step 5: Solve for x
    x = 38,557,474,254.61/225,741.53
  6. Step 6: Final answer
    x = 170,803.64

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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.