Home / 132,921.86-183,431.46-72,491.42

Finding the Fourth Proportional to 132,921.86, 183,431.46 and 72,491.42

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Solution

The fourth proportional to 132,921.86, 183,431.46 and 72,491.42 is: 100,037.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,921.86 : 183,431.46 = 72,491.42 : x
  2. Step 2: Convert to fraction form
    132,921.86/183,431.46 = 72,491.42/x
  3. Step 3: Cross multiply
    132,921.86x = 183,431.46 × 72,491.42
  4. Step 4: Simplify right side
    132,921.86x = 13,297,207,008.07
  5. Step 5: Solve for x
    x = 13,297,207,008.07/132,921.86
  6. Step 6: Final answer
    x = 100,037.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.