Home / 109,739.15-164,596.74-74,427.31

Finding the Fourth Proportional to 109,739.15, 164,596.74 and 74,427.31

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Solution

The fourth proportional to 109,739.15, 164,596.74 and 74,427.31 is: 111,632.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,739.15 : 164,596.74 = 74,427.31 : x
  2. Step 2: Convert to fraction form
    109,739.15/164,596.74 = 74,427.31/x
  3. Step 3: Cross multiply
    109,739.15x = 164,596.74 × 74,427.31
  4. Step 4: Simplify right side
    109,739.15x = 12,250,492,592.97
  5. Step 5: Solve for x
    x = 12,250,492,592.97/109,739.15
  6. Step 6: Final answer
    x = 111,632.84

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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.