Home / 137,970.44-190,414.94-76,722.69

Finding the Fourth Proportional to 137,970.44, 190,414.94 and 76,722.69

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Solution

The fourth proportional to 137,970.44, 190,414.94 and 76,722.69 is: 105,886.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,970.44 : 190,414.94 = 76,722.69 : x
  2. Step 2: Convert to fraction form
    137,970.44/190,414.94 = 76,722.69/x
  3. Step 3: Cross multiply
    137,970.44x = 190,414.94 × 76,722.69
  4. Step 4: Simplify right side
    137,970.44x = 14,609,146,743.43
  5. Step 5: Solve for x
    x = 14,609,146,743.43/137,970.44
  6. Step 6: Final answer
    x = 105,886.06

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1.5x scale

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.