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Finding the Fourth Proportional to 143,460.80, 214,863.15 and 73,258.10

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Solution

The fourth proportional to 143,460.80, 214,863.15 and 73,258.10 is: 109,719.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,460.80 : 214,863.15 = 73,258.10 : x
  2. Step 2: Convert to fraction form
    143,460.80/214,863.15 = 73,258.10/x
  3. Step 3: Cross multiply
    143,460.80x = 214,863.15 × 73,258.10
  4. Step 4: Simplify right side
    143,460.80x = 15,740,466,129.02
  5. Step 5: Solve for x
    x = 15,740,466,129.02/143,460.80
  6. Step 6: Final answer
    x = 109,719.63

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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.