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Finding the Fourth Proportional to 143,965.76, 215,948.70 and 73,800.32

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Solution

The fourth proportional to 143,965.76, 215,948.70 and 73,800.32 is: 110,700.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,965.76 : 215,948.70 = 73,800.32 : x
  2. Step 2: Convert to fraction form
    143,965.76/215,948.70 = 73,800.32/x
  3. Step 3: Cross multiply
    143,965.76x = 215,948.70 × 73,800.32
  4. Step 4: Simplify right side
    143,965.76x = 15,937,082,083.84
  5. Step 5: Solve for x
    x = 15,937,082,083.84/143,965.76
  6. Step 6: Final answer
    x = 110,700.51

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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.