Home / 120,823.55-181,017.99-113,707.60

Finding the Fourth Proportional to 120,823.55, 181,017.99 and 113,707.60

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Solution

The fourth proportional to 120,823.55, 181,017.99 and 113,707.60 is: 170,356.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,823.55 : 181,017.99 = 113,707.60 : x
  2. Step 2: Convert to fraction form
    120,823.55/181,017.99 = 113,707.60/x
  3. Step 3: Cross multiply
    120,823.55x = 181,017.99 × 113,707.60
  4. Step 4: Simplify right side
    120,823.55x = 20,583,120,747.18
  5. Step 5: Solve for x
    x = 20,583,120,747.18/120,823.55
  6. Step 6: Final answer
    x = 170,356.86

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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.