Home / 121,984.54-183,186.20-74,876.26

Finding the Fourth Proportional to 121,984.54, 183,186.20 and 74,876.26

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Solution

The fourth proportional to 121,984.54, 183,186.20 and 74,876.26 is: 112,442.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,984.54 : 183,186.20 = 74,876.26 : x
  2. Step 2: Convert to fraction form
    121,984.54/183,186.20 = 74,876.26/x
  3. Step 3: Cross multiply
    121,984.54x = 183,186.20 × 74,876.26
  4. Step 4: Simplify right side
    121,984.54x = 13,716,297,539.61
  5. Step 5: Solve for x
    x = 13,716,297,539.61/121,984.54
  6. Step 6: Final answer
    x = 112,442.92

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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.