Home / 120,766.65-181,133.55-45,905.64

Finding the Fourth Proportional to 120,766.65, 181,133.55 and 45,905.64

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Solution

The fourth proportional to 120,766.65, 181,133.55 and 45,905.64 is: 68,852.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,766.65 : 181,133.55 = 45,905.64 : x
  2. Step 2: Convert to fraction form
    120,766.65/181,133.55 = 45,905.64/x
  3. Step 3: Cross multiply
    120,766.65x = 181,133.55 × 45,905.64
  4. Step 4: Simplify right side
    120,766.65x = 8,315,051,538.22
  5. Step 5: Solve for x
    x = 8,315,051,538.22/120,766.65
  6. Step 6: Final answer
    x = 68,852.22

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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.