Home / 121,021.11-181,527.48-46,138.50

Finding the Fourth Proportional to 121,021.11, 181,527.48 and 46,138.50

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Solution

The fourth proportional to 121,021.11, 181,527.48 and 46,138.50 is: 69,206.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,021.11 : 181,527.48 = 46,138.50 : x
  2. Step 2: Convert to fraction form
    121,021.11/181,527.48 = 46,138.50/x
  3. Step 3: Cross multiply
    121,021.11x = 181,527.48 × 46,138.50
  4. Step 4: Simplify right side
    121,021.11x = 8,375,405,635.98
  5. Step 5: Solve for x
    x = 8,375,405,635.98/121,021.11
  6. Step 6: Final answer
    x = 69,206.15

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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.