Home / 129,825,881.72-194,429,688.75-75,123,183.37

Finding the Fourth Proportional to 129,825,881.72, 194,429,688.75 and 75,123,183.37

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Solution

The fourth proportional to 129,825,881.72, 194,429,688.75 and 75,123,183.37 is: 112,505,896.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,825,881.72 : 194,429,688.75 = 75,123,183.37 : x
  2. Step 2: Convert to fraction form
    129,825,881.72/194,429,688.75 = 75,123,183.37/x
  3. Step 3: Cross multiply
    129,825,881.72x = 194,429,688.75 × 75,123,183.37
  4. Step 4: Simplify right side
    129,825,881.72x = 14,606,177,159,566,126
  5. Step 5: Solve for x
    x = 14,606,177,159,566,126/129,825,881.72
  6. Step 6: Final answer
    x = 112,505,896.10

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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.