Home / 126,822.80-189,845.40-74,075.60

Finding the Fourth Proportional to 126,822.80, 189,845.40 and 74,075.60

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Solution

The fourth proportional to 126,822.80, 189,845.40 and 74,075.60 is: 110,886.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,822.80 : 189,845.40 = 74,075.60 : x
  2. Step 2: Convert to fraction form
    126,822.80/189,845.40 = 74,075.60/x
  3. Step 3: Cross multiply
    126,822.80x = 189,845.40 × 74,075.60
  4. Step 4: Simplify right side
    126,822.80x = 14,062,911,912.24
  5. Step 5: Solve for x
    x = 14,062,911,912.24/126,822.80
  6. Step 6: Final answer
    x = 110,886.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.