Home / 113,968.87-170,899.64-66,597.65

Finding the Fourth Proportional to 113,968.87, 170,899.64 and 66,597.65

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Solution

The fourth proportional to 113,968.87, 170,899.64 and 66,597.65 is: 99,865.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,968.87 : 170,899.64 = 66,597.65 : x
  2. Step 2: Convert to fraction form
    113,968.87/170,899.64 = 66,597.65/x
  3. Step 3: Cross multiply
    113,968.87x = 170,899.64 × 66,597.65
  4. Step 4: Simplify right side
    113,968.87x = 11,381,514,914.36
  5. Step 5: Solve for x
    x = 11,381,514,914.36/113,968.87
  6. Step 6: Final answer
    x = 99,865.12

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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.