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Finding the Fourth Proportional to 143,157.76, 214,808 and 64,328.32

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Solution

The fourth proportional to 143,157.76, 214,808 and 64,328.32 is: 96,524.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,157.76 : 214,808 = 64,328.32 : x
  2. Step 2: Convert to fraction form
    143,157.76/214,808 = 64,328.32/x
  3. Step 3: Cross multiply
    143,157.76x = 214,808 × 64,328.32
  4. Step 4: Simplify right side
    143,157.76x = 13,818,237,762.56
  5. Step 5: Solve for x
    x = 13,818,237,762.56/143,157.76
  6. Step 6: Final answer
    x = 96,524.55

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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.