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Finding the Fourth Proportional to 143,807.68, 215,712 and 43,967.48

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Solution

The fourth proportional to 143,807.68, 215,712 and 43,967.48 is: 65,951.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,807.68 : 215,712 = 43,967.48 : x
  2. Step 2: Convert to fraction form
    143,807.68/215,712 = 43,967.48/x
  3. Step 3: Cross multiply
    143,807.68x = 215,712 × 43,967.48
  4. Step 4: Simplify right side
    143,807.68x = 9,484,313,045.76
  5. Step 5: Solve for x
    x = 9,484,313,045.76/143,807.68
  6. Step 6: Final answer
    x = 65,951.37

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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.