Home / 145,096.48-217,691.76-71,172.64

Finding the Fourth Proportional to 145,096.48, 217,691.76 and 71,172.64

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Solution

The fourth proportional to 145,096.48, 217,691.76 and 71,172.64 is: 106,782.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,096.48 : 217,691.76 = 71,172.64 : x
  2. Step 2: Convert to fraction form
    145,096.48/217,691.76 = 71,172.64/x
  3. Step 3: Cross multiply
    145,096.48x = 217,691.76 × 71,172.64
  4. Step 4: Simplify right side
    145,096.48x = 15,493,697,265.45
  5. Step 5: Solve for x
    x = 15,493,697,265.45/145,096.48
  6. Step 6: Final answer
    x = 106,782.03

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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.