Home / 142,036.44-196,003.73-81,564.54

Finding the Fourth Proportional to 142,036.44, 196,003.73 and 81,564.54

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Solution

The fourth proportional to 142,036.44, 196,003.73 and 81,564.54 is: 112,555.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,036.44 : 196,003.73 = 81,564.54 : x
  2. Step 2: Convert to fraction form
    142,036.44/196,003.73 = 81,564.54/x
  3. Step 3: Cross multiply
    142,036.44x = 196,003.73 × 81,564.54
  4. Step 4: Simplify right side
    142,036.44x = 15,986,954,075.73
  5. Step 5: Solve for x
    x = 15,986,954,075.73/142,036.44
  6. Step 6: Final answer
    x = 112,555.30

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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.