Home / 117,683.85-162,440.87-75,242.55

Finding the Fourth Proportional to 117,683.85, 162,440.87 and 75,242.55

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Solution

The fourth proportional to 117,683.85, 162,440.87 and 75,242.55 is: 103,858.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,683.85 : 162,440.87 = 75,242.55 : x
  2. Step 2: Convert to fraction form
    117,683.85/162,440.87 = 75,242.55/x
  3. Step 3: Cross multiply
    117,683.85x = 162,440.87 × 75,242.55
  4. Step 4: Simplify right side
    117,683.85x = 12,222,464,906.81
  5. Step 5: Solve for x
    x = 12,222,464,906.81/117,683.85
  6. Step 6: Final answer
    x = 103,858.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.