Home / 121,086.85-181,742.50-61,157.41

Finding the Fourth Proportional to 121,086.85, 181,742.50 and 61,157.41

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Solution

The fourth proportional to 121,086.85, 181,742.50 and 61,157.41 is: 91,792.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,086.85 : 181,742.50 = 61,157.41 : x
  2. Step 2: Convert to fraction form
    121,086.85/181,742.50 = 61,157.41/x
  3. Step 3: Cross multiply
    121,086.85x = 181,742.50 × 61,157.41
  4. Step 4: Simplify right side
    121,086.85x = 11,114,900,890.55
  5. Step 5: Solve for x
    x = 11,114,900,890.55/121,086.85
  6. Step 6: Final answer
    x = 91,792.80

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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.