Home / 215,816.10-323,748.45-66,055.20

Finding the Fourth Proportional to 215,816.10, 323,748.45 and 66,055.20

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Solution

The fourth proportional to 215,816.10, 323,748.45 and 66,055.20 is: 99,090.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,816.10 : 323,748.45 = 66,055.20 : x
  2. Step 2: Convert to fraction form
    215,816.10/323,748.45 = 66,055.20/x
  3. Step 3: Cross multiply
    215,816.10x = 323,748.45 × 66,055.20
  4. Step 4: Simplify right side
    215,816.10x = 21,385,268,614.44
  5. Step 5: Solve for x
    x = 21,385,268,614.44/215,816.10
  6. Step 6: Final answer
    x = 99,090.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.