Home / 168,870.07-253,374.90-74,051.20

Finding the Fourth Proportional to 168,870.07, 253,374.90 and 74,051.20

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Solution

The fourth proportional to 168,870.07, 253,374.90 and 74,051.20 is: 111,107.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,870.07 : 253,374.90 = 74,051.20 : x
  2. Step 2: Convert to fraction form
    168,870.07/253,374.90 = 74,051.20/x
  3. Step 3: Cross multiply
    168,870.07x = 253,374.90 × 74,051.20
  4. Step 4: Simplify right side
    168,870.07x = 18,762,715,394.88
  5. Step 5: Solve for x
    x = 18,762,715,394.88/168,870.07
  6. Step 6: Final answer
    x = 111,107.41

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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.