Home / 254,157.13-381,224.15-111,964.36

Finding the Fourth Proportional to 254,157.13, 381,224.15 and 111,964.36

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Solution

The fourth proportional to 254,157.13, 381,224.15 and 111,964.36 is: 167,941.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,157.13 : 381,224.15 = 111,964.36 : x
  2. Step 2: Convert to fraction form
    254,157.13/381,224.15 = 111,964.36/x
  3. Step 3: Cross multiply
    254,157.13x = 381,224.15 × 111,964.36
  4. Step 4: Simplify right side
    254,157.13x = 42,683,517,971.29
  5. Step 5: Solve for x
    x = 42,683,517,971.29/254,157.13
  6. Step 6: Final answer
    x = 167,941.45

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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.