Home / 121,391.49-182,088.90-46,515.42

Finding the Fourth Proportional to 121,391.49, 182,088.90 and 46,515.42

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Solution

The fourth proportional to 121,391.49, 182,088.90 and 46,515.42 is: 69,773.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,391.49 : 182,088.90 = 46,515.42 : x
  2. Step 2: Convert to fraction form
    121,391.49/182,088.90 = 46,515.42/x
  3. Step 3: Cross multiply
    121,391.49x = 182,088.90 × 46,515.42
  4. Step 4: Simplify right side
    121,391.49x = 8,469,941,660.84
  5. Step 5: Solve for x
    x = 8,469,941,660.84/121,391.49
  6. Step 6: Final answer
    x = 69,773.77

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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.