Home / 147,911.67-221,208.71-131,379.03

Finding the Fourth Proportional to 147,911.67, 221,208.71 and 131,379.03

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Solution

The fourth proportional to 147,911.67, 221,208.71 and 131,379.03 is: 196,483.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,911.67 : 221,208.71 = 131,379.03 : x
  2. Step 2: Convert to fraction form
    147,911.67/221,208.71 = 131,379.03/x
  3. Step 3: Cross multiply
    147,911.67x = 221,208.71 × 131,379.03
  4. Step 4: Simplify right side
    147,911.67x = 29,062,185,090.46
  5. Step 5: Solve for x
    x = 29,062,185,090.46/147,911.67
  6. Step 6: Final answer
    x = 196,483.38

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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.