Home / 111,181.27-166,721.28-47,971.45

Finding the Fourth Proportional to 111,181.27, 166,721.28 and 47,971.45

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Solution

The fourth proportional to 111,181.27, 166,721.28 and 47,971.45 is: 71,935.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,181.27 : 166,721.28 = 47,971.45 : x
  2. Step 2: Convert to fraction form
    111,181.27/166,721.28 = 47,971.45/x
  3. Step 3: Cross multiply
    111,181.27x = 166,721.28 × 47,971.45
  4. Step 4: Simplify right side
    111,181.27x = 7,997,861,547.46
  5. Step 5: Solve for x
    x = 7,997,861,547.46/111,181.27
  6. Step 6: Final answer
    x = 71,935.33

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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.