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Finding the Fourth Proportional to 135,075.40, 202,394.40 and 127,202.20

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Solution

The fourth proportional to 135,075.40, 202,394.40 and 127,202.20 is: 190,597.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,075.40 : 202,394.40 = 127,202.20 : x
  2. Step 2: Convert to fraction form
    135,075.40/202,394.40 = 127,202.20/x
  3. Step 3: Cross multiply
    135,075.40x = 202,394.40 × 127,202.20
  4. Step 4: Simplify right side
    135,075.40x = 25,745,012,947.68
  5. Step 5: Solve for x
    x = 25,745,012,947.68/135,075.40
  6. Step 6: Final answer
    x = 190,597.35

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1.5x scale

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.