Home / 253,145.25-349,351.38-139,968

Finding the Fourth Proportional to 253,145.25, 349,351.38 and 139,968

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Solution

The fourth proportional to 253,145.25, 349,351.38 and 139,968 is: 193,161.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,145.25 : 349,351.38 = 139,968 : x
  2. Step 2: Convert to fraction form
    253,145.25/349,351.38 = 139,968/x
  3. Step 3: Cross multiply
    253,145.25x = 349,351.38 × 139,968
  4. Step 4: Simplify right side
    253,145.25x = 48,898,013,955.84
  5. Step 5: Solve for x
    x = 48,898,013,955.84/253,145.25
  6. Step 6: Final answer
    x = 193,161.89

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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.