Home / 86,683.10-119,163.29-74,539.04

Finding the Fourth Proportional to 86,683.10, 119,163.29 and 74,539.04

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Solution

The fourth proportional to 86,683.10, 119,163.29 and 74,539.04 is: 102,468.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,683.10 : 119,163.29 = 74,539.04 : x
  2. Step 2: Convert to fraction form
    86,683.10/119,163.29 = 74,539.04/x
  3. Step 3: Cross multiply
    86,683.10x = 119,163.29 × 74,539.04
  4. Step 4: Simplify right side
    86,683.10x = 8,882,316,271.33
  5. Step 5: Solve for x
    x = 8,882,316,271.33/86,683.10
  6. Step 6: Final answer
    x = 102,468.84

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.