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Finding the Fourth Proportional to 143,507.00, 215,119.95 and 53,483.81

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Solution

The fourth proportional to 143,507.00, 215,119.95 and 53,483.81 is: 80,173.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,507.00 : 215,119.95 = 53,483.81 : x
  2. Step 2: Convert to fraction form
    143,507.00/215,119.95 = 53,483.81/x
  3. Step 3: Cross multiply
    143,507.00x = 215,119.95 × 53,483.81
  4. Step 4: Simplify right side
    143,507.00x = 11,505,433,457.41
  5. Step 5: Solve for x
    x = 11,505,433,457.41/143,507.00
  6. Step 6: Final answer
    x = 80,173.33

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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.