Home / 137,955.22-190,378.89-80,597.84

Finding the Fourth Proportional to 137,955.22, 190,378.89 and 80,597.84

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Solution

The fourth proportional to 137,955.22, 190,378.89 and 80,597.84 is: 111,225.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,955.22 : 190,378.89 = 80,597.84 : x
  2. Step 2: Convert to fraction form
    137,955.22/190,378.89 = 80,597.84/x
  3. Step 3: Cross multiply
    137,955.22x = 190,378.89 × 80,597.84
  4. Step 4: Simplify right side
    137,955.22x = 15,344,126,363.70
  5. Step 5: Solve for x
    x = 15,344,126,363.70/137,955.22
  6. Step 6: Final answer
    x = 111,225.42

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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.