Home / 121,116.08-181,628.04-55,406

Finding the Fourth Proportional to 121,116.08, 181,628.04 and 55,406

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Solution

The fourth proportional to 121,116.08, 181,628.04 and 55,406 is: 83,087.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,116.08 : 181,628.04 = 55,406 : x
  2. Step 2: Convert to fraction form
    121,116.08/181,628.04 = 55,406/x
  3. Step 3: Cross multiply
    121,116.08x = 181,628.04 × 55,406
  4. Step 4: Simplify right side
    121,116.08x = 10,063,283,184.24
  5. Step 5: Solve for x
    x = 10,063,283,184.24/121,116.08
  6. Step 6: Final answer
    x = 83,087.92

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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.