Home / 171,942.02-257,830.07-72,075.39

Finding the Fourth Proportional to 171,942.02, 257,830.07 and 72,075.39

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Solution

The fourth proportional to 171,942.02, 257,830.07 and 72,075.39 is: 108,078.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,942.02 : 257,830.07 = 72,075.39 : x
  2. Step 2: Convert to fraction form
    171,942.02/257,830.07 = 72,075.39/x
  3. Step 3: Cross multiply
    171,942.02x = 257,830.07 × 72,075.39
  4. Step 4: Simplify right side
    171,942.02x = 18,583,202,488.60
  5. Step 5: Solve for x
    x = 18,583,202,488.60/171,942.02
  6. Step 6: Final answer
    x = 108,078.31

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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.