Home / 97,731.55-146,611.30-31,172.43

Finding the Fourth Proportional to 97,731.55, 146,611.30 and 31,172.43

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Solution

The fourth proportional to 97,731.55, 146,611.30 and 31,172.43 is: 46,763.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,731.55 : 146,611.30 = 31,172.43 : x
  2. Step 2: Convert to fraction form
    97,731.55/146,611.30 = 31,172.43/x
  3. Step 3: Cross multiply
    97,731.55x = 146,611.30 × 31,172.43
  4. Step 4: Simplify right side
    97,731.55x = 4,570,230,486.46
  5. Step 5: Solve for x
    x = 4,570,230,486.46/97,731.55
  6. Step 6: Final answer
    x = 46,763.10

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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.