Home / 258,193.13-356,339.93-145,015.88

Finding the Fourth Proportional to 258,193.13, 356,339.93 and 145,015.88

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Solution

The fourth proportional to 258,193.13, 356,339.93 and 145,015.88 is: 200,140.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,193.13 : 356,339.93 = 145,015.88 : x
  2. Step 2: Convert to fraction form
    258,193.13/356,339.93 = 145,015.88/x
  3. Step 3: Cross multiply
    258,193.13x = 356,339.93 × 145,015.88
  4. Step 4: Simplify right side
    258,193.13x = 51,674,946,021.31
  5. Step 5: Solve for x
    x = 51,674,946,021.31/258,193.13
  6. Step 6: Final answer
    x = 200,140.67

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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.