Home / 121,106.96-181,672.80-46,290.07

Finding the Fourth Proportional to 121,106.96, 181,672.80 and 46,290.07

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Solution

The fourth proportional to 121,106.96, 181,672.80 and 46,290.07 is: 69,439.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,106.96 : 181,672.80 = 46,290.07 : x
  2. Step 2: Convert to fraction form
    121,106.96/181,672.80 = 46,290.07/x
  3. Step 3: Cross multiply
    121,106.96x = 181,672.80 × 46,290.07
  4. Step 4: Simplify right side
    121,106.96x = 8,409,646,629.10
  5. Step 5: Solve for x
    x = 8,409,646,629.10/121,106.96
  6. Step 6: Final answer
    x = 69,439.83

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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.