Home / 215,614.80-323,422.20-97,419.60

Finding the Fourth Proportional to 215,614.80, 323,422.20 and 97,419.60

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Solution

The fourth proportional to 215,614.80, 323,422.20 and 97,419.60 is: 146,129.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,614.80 : 323,422.20 = 97,419.60 : x
  2. Step 2: Convert to fraction form
    215,614.80/323,422.20 = 97,419.60/x
  3. Step 3: Cross multiply
    215,614.80x = 323,422.20 × 97,419.60
  4. Step 4: Simplify right side
    215,614.80x = 31,507,661,355.12
  5. Step 5: Solve for x
    x = 31,507,661,355.12/215,614.80
  6. Step 6: Final answer
    x = 146,129.40

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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.