Home / 216,623.62-298,940.64-121,130.56

Finding the Fourth Proportional to 216,623.62, 298,940.64 and 121,130.56

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Solution

The fourth proportional to 216,623.62, 298,940.64 and 121,130.56 is: 167,160.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,623.62 : 298,940.64 = 121,130.56 : x
  2. Step 2: Convert to fraction form
    216,623.62/298,940.64 = 121,130.56/x
  3. Step 3: Cross multiply
    216,623.62x = 298,940.64 × 121,130.56
  4. Step 4: Simplify right side
    216,623.62x = 36,210,847,129.96
  5. Step 5: Solve for x
    x = 36,210,847,129.96/216,623.62
  6. Step 6: Final answer
    x = 167,160.20

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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.