Home / 143,561.03-215,325.12-38,388.20

Finding the Fourth Proportional to 143,561.03, 215,325.12 and 38,388.20

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Solution

The fourth proportional to 143,561.03, 215,325.12 and 38,388.20 is: 57,577.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,561.03 : 215,325.12 = 38,388.20 : x
  2. Step 2: Convert to fraction form
    143,561.03/215,325.12 = 38,388.20/x
  3. Step 3: Cross multiply
    143,561.03x = 215,325.12 × 38,388.20
  4. Step 4: Simplify right side
    143,561.03x = 8,265,943,579.64
  5. Step 5: Solve for x
    x = 8,265,943,579.64/143,561.03
  6. Step 6: Final answer
    x = 57,577.91

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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.