Home / 121,074.70-181,631.50-46,191.82

Finding the Fourth Proportional to 121,074.70, 181,631.50 and 46,191.82

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Solution

The fourth proportional to 121,074.70, 181,631.50 and 46,191.82 is: 69,295.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,074.70 : 181,631.50 = 46,191.82 : x
  2. Step 2: Convert to fraction form
    121,074.70/181,631.50 = 46,191.82/x
  3. Step 3: Cross multiply
    121,074.70x = 181,631.50 × 46,191.82
  4. Step 4: Simplify right side
    121,074.70x = 8,389,889,554.33
  5. Step 5: Solve for x
    x = 8,389,889,554.33/121,074.70
  6. Step 6: Final answer
    x = 69,295.15

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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.