Home / 145,236.44-200,422.28-80,704.01

Finding the Fourth Proportional to 145,236.44, 200,422.28 and 80,704.01

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Solution

The fourth proportional to 145,236.44, 200,422.28 and 80,704.01 is: 111,369.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,236.44 : 200,422.28 = 80,704.01 : x
  2. Step 2: Convert to fraction form
    145,236.44/200,422.28 = 80,704.01/x
  3. Step 3: Cross multiply
    145,236.44x = 200,422.28 × 80,704.01
  4. Step 4: Simplify right side
    145,236.44x = 16,174,880,888.99
  5. Step 5: Solve for x
    x = 16,174,880,888.99/145,236.44
  6. Step 6: Final answer
    x = 111,369.31

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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.