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Finding the Fourth Proportional to 143,570.62, 215,400.06 and 73,499.14

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Solution

The fourth proportional to 143,570.62, 215,400.06 and 73,499.14 is: 110,271.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,570.62 : 215,400.06 = 73,499.14 : x
  2. Step 2: Convert to fraction form
    143,570.62/215,400.06 = 73,499.14/x
  3. Step 3: Cross multiply
    143,570.62x = 215,400.06 × 73,499.14
  4. Step 4: Simplify right side
    143,570.62x = 15,831,719,165.95
  5. Step 5: Solve for x
    x = 15,831,719,165.95/143,570.62
  6. Step 6: Final answer
    x = 110,271.30

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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.