Home / 143,289.10-214,933.65-131,916.70

Finding the Fourth Proportional to 143,289.10, 214,933.65 and 131,916.70

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Solution

The fourth proportional to 143,289.10, 214,933.65 and 131,916.70 is: 197,875.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,289.10 : 214,933.65 = 131,916.70 : x
  2. Step 2: Convert to fraction form
    143,289.10/214,933.65 = 131,916.70/x
  3. Step 3: Cross multiply
    143,289.10x = 214,933.65 × 131,916.70
  4. Step 4: Simplify right side
    143,289.10x = 28,353,337,826.96
  5. Step 5: Solve for x
    x = 28,353,337,826.96/143,289.10
  6. Step 6: Final answer
    x = 197,875.05

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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.