Home / 138,112.23-190,592.97-77,682.84

Finding the Fourth Proportional to 138,112.23, 190,592.97 and 77,682.84

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Solution

The fourth proportional to 138,112.23, 190,592.97 and 77,682.84 is: 107,201.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,112.23 : 190,592.97 = 77,682.84 : x
  2. Step 2: Convert to fraction form
    138,112.23/190,592.97 = 77,682.84/x
  3. Step 3: Cross multiply
    138,112.23x = 190,592.97 × 77,682.84
  4. Step 4: Simplify right side
    138,112.23x = 14,805,803,193.63
  5. Step 5: Solve for x
    x = 14,805,803,193.63/138,112.23
  6. Step 6: Final answer
    x = 107,201.25

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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.