Home / 216,121.83-298,220.60-120,632.55

Finding the Fourth Proportional to 216,121.83, 298,220.60 and 120,632.55

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Solution

The fourth proportional to 216,121.83, 298,220.60 and 120,632.55 is: 166,457.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,121.83 : 298,220.60 = 120,632.55 : x
  2. Step 2: Convert to fraction form
    216,121.83/298,220.60 = 120,632.55/x
  3. Step 3: Cross multiply
    216,121.83x = 298,220.60 × 120,632.55
  4. Step 4: Simplify right side
    216,121.83x = 35,975,111,440.53
  5. Step 5: Solve for x
    x = 35,975,111,440.53/216,121.83
  6. Step 6: Final answer
    x = 166,457.56

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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.