Home / 156,812.96-235,299.93-76,849.42

Finding the Fourth Proportional to 156,812.96, 235,299.93 and 76,849.42

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Solution

The fourth proportional to 156,812.96, 235,299.93 and 76,849.42 is: 115,313.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,812.96 : 235,299.93 = 76,849.42 : x
  2. Step 2: Convert to fraction form
    156,812.96/235,299.93 = 76,849.42/x
  3. Step 3: Cross multiply
    156,812.96x = 235,299.93 × 76,849.42
  4. Step 4: Simplify right side
    156,812.96x = 18,082,663,146.54
  5. Step 5: Solve for x
    x = 18,082,663,146.54/156,812.96
  6. Step 6: Final answer
    x = 115,313.58

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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.