Home / 204,075.40-305,967.30-91,663.60

Finding the Fourth Proportional to 204,075.40, 305,967.30 and 91,663.60

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Solution

The fourth proportional to 204,075.40, 305,967.30 and 91,663.60 is: 137,429.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,075.40 : 305,967.30 = 91,663.60 : x
  2. Step 2: Convert to fraction form
    204,075.40/305,967.30 = 91,663.60/x
  3. Step 3: Cross multiply
    204,075.40x = 305,967.30 × 91,663.60
  4. Step 4: Simplify right side
    204,075.40x = 28,046,064,200.28
  5. Step 5: Solve for x
    x = 28,046,064,200.28/204,075.40
  6. Step 6: Final answer
    x = 137,429.91

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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.