Home / 143,506.28-215,072.24-89,448.64

Finding the Fourth Proportional to 143,506.28, 215,072.24 and 89,448.64

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Solution

The fourth proportional to 143,506.28, 215,072.24 and 89,448.64 is: 134,056.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,506.28 : 215,072.24 = 89,448.64 : x
  2. Step 2: Convert to fraction form
    143,506.28/215,072.24 = 89,448.64/x
  3. Step 3: Cross multiply
    143,506.28x = 215,072.24 × 89,448.64
  4. Step 4: Simplify right side
    143,506.28x = 19,237,919,369.75
  5. Step 5: Solve for x
    x = 19,237,919,369.75/143,506.28
  6. Step 6: Final answer
    x = 134,056.29

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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.