Home / 216,128.16-298,247.04-120,632.76

Finding the Fourth Proportional to 216,128.16, 298,247.04 and 120,632.76

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Solution

The fourth proportional to 216,128.16, 298,247.04 and 120,632.76 is: 166,467.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,128.16 : 298,247.04 = 120,632.76 : x
  2. Step 2: Convert to fraction form
    216,128.16/298,247.04 = 120,632.76/x
  3. Step 3: Cross multiply
    216,128.16x = 298,247.04 × 120,632.76
  4. Step 4: Simplify right side
    216,128.16x = 35,978,363,597.03
  5. Step 5: Solve for x
    x = 35,978,363,597.03/216,128.16
  6. Step 6: Final answer
    x = 166,467.73

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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.