Home / 84,967.20-127,450.80-74,141.55

Finding the Fourth Proportional to 84,967.20, 127,450.80 and 74,141.55

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Solution

The fourth proportional to 84,967.20, 127,450.80 and 74,141.55 is: 111,212.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,967.20 : 127,450.80 = 74,141.55 : x
  2. Step 2: Convert to fraction form
    84,967.20/127,450.80 = 74,141.55/x
  3. Step 3: Cross multiply
    84,967.20x = 127,450.80 × 74,141.55
  4. Step 4: Simplify right side
    84,967.20x = 9,449,399,860.74
  5. Step 5: Solve for x
    x = 9,449,399,860.74/84,967.20
  6. Step 6: Final answer
    x = 111,212.33

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1.5x scale

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.