Home / 109,262.51-150,771.40-80,597.66

Finding the Fourth Proportional to 109,262.51, 150,771.40 and 80,597.66

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Solution

The fourth proportional to 109,262.51, 150,771.40 and 80,597.66 is: 111,216.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,262.51 : 150,771.40 = 80,597.66 : x
  2. Step 2: Convert to fraction form
    109,262.51/150,771.40 = 80,597.66/x
  3. Step 3: Cross multiply
    109,262.51x = 150,771.40 × 80,597.66
  4. Step 4: Simplify right side
    109,262.51x = 12,151,821,079.57
  5. Step 5: Solve for x
    x = 12,151,821,079.57/109,262.51
  6. Step 6: Final answer
    x = 111,216.75

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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.