Home / 121,100.23-181,696.47-54,525.05

Finding the Fourth Proportional to 121,100.23, 181,696.47 and 54,525.05

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Solution

The fourth proportional to 121,100.23, 181,696.47 and 54,525.05 is: 81,808.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,100.23 : 181,696.47 = 54,525.05 : x
  2. Step 2: Convert to fraction form
    121,100.23/181,696.47 = 54,525.05/x
  3. Step 3: Cross multiply
    121,100.23x = 181,696.47 × 54,525.05
  4. Step 4: Simplify right side
    121,100.23x = 9,907,009,111.57
  5. Step 5: Solve for x
    x = 9,907,009,111.57/121,100.23
  6. Step 6: Final answer
    x = 81,808.34

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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.