Home / 231,981.89-320,157.47-130,024.67

Finding the Fourth Proportional to 231,981.89, 320,157.47 and 130,024.67

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Solution

The fourth proportional to 231,981.89, 320,157.47 and 130,024.67 is: 179,446.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,981.89 : 320,157.47 = 130,024.67 : x
  2. Step 2: Convert to fraction form
    231,981.89/320,157.47 = 130,024.67/x
  3. Step 3: Cross multiply
    231,981.89x = 320,157.47 × 130,024.67
  4. Step 4: Simplify right side
    231,981.89x = 41,628,368,109.06
  5. Step 5: Solve for x
    x = 41,628,368,109.06/231,981.89
  6. Step 6: Final answer
    x = 179,446.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.