Home / 216,089.24-298,218.12-120,614.60

Finding the Fourth Proportional to 216,089.24, 298,218.12 and 120,614.60

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Solution

The fourth proportional to 216,089.24, 298,218.12 and 120,614.60 is: 166,456.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,089.24 : 298,218.12 = 120,614.60 : x
  2. Step 2: Convert to fraction form
    216,089.24/298,218.12 = 120,614.60/x
  3. Step 3: Cross multiply
    216,089.24x = 298,218.12 × 120,614.60
  4. Step 4: Simplify right side
    216,089.24x = 35,969,459,256.55
  5. Step 5: Solve for x
    x = 35,969,459,256.55/216,089.24
  6. Step 6: Final answer
    x = 166,456.50

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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.