Home / 119,834.63-165,431.71-74,527.21

Finding the Fourth Proportional to 119,834.63, 165,431.71 and 74,527.21

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Solution

The fourth proportional to 119,834.63, 165,431.71 and 74,527.21 is: 102,884.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,834.63 : 165,431.71 = 74,527.21 : x
  2. Step 2: Convert to fraction form
    119,834.63/165,431.71 = 74,527.21/x
  3. Step 3: Cross multiply
    119,834.63x = 165,431.71 × 74,527.21
  4. Step 4: Simplify right side
    119,834.63x = 12,329,163,471.41
  5. Step 5: Solve for x
    x = 12,329,163,471.41/119,834.63
  6. Step 6: Final answer
    x = 102,884.81

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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.