Home / 143,930.60-215,895.90-113,863.40

Finding the Fourth Proportional to 143,930.60, 215,895.90 and 113,863.40

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Solution

The fourth proportional to 143,930.60, 215,895.90 and 113,863.40 is: 170,795.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,930.60 : 215,895.90 = 113,863.40 : x
  2. Step 2: Convert to fraction form
    143,930.60/215,895.90 = 113,863.40/x
  3. Step 3: Cross multiply
    143,930.60x = 215,895.90 × 113,863.40
  4. Step 4: Simplify right side
    143,930.60x = 24,582,641,220.06
  5. Step 5: Solve for x
    x = 24,582,641,220.06/143,930.60
  6. Step 6: Final answer
    x = 170,795.10

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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.