Home / 148,740.26-205,261.54-81,672.26

Finding the Fourth Proportional to 148,740.26, 205,261.54 and 81,672.26

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Solution

The fourth proportional to 148,740.26, 205,261.54 and 81,672.26 is: 112,707.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,740.26 : 205,261.54 = 81,672.26 : x
  2. Step 2: Convert to fraction form
    148,740.26/205,261.54 = 81,672.26/x
  3. Step 3: Cross multiply
    148,740.26x = 205,261.54 × 81,672.26
  4. Step 4: Simplify right side
    148,740.26x = 16,764,173,862.88
  5. Step 5: Solve for x
    x = 16,764,173,862.88/148,740.26
  6. Step 6: Final answer
    x = 112,707.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.