Home / 106,401.53-146,649.15-77,673.94

Finding the Fourth Proportional to 106,401.53, 146,649.15 and 77,673.94

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Solution

The fourth proportional to 106,401.53, 146,649.15 and 77,673.94 is: 107,055.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,401.53 : 146,649.15 = 77,673.94 : x
  2. Step 2: Convert to fraction form
    106,401.53/146,649.15 = 77,673.94/x
  3. Step 3: Cross multiply
    106,401.53x = 146,649.15 × 77,673.94
  4. Step 4: Simplify right side
    106,401.53x = 11,390,816,911.53
  5. Step 5: Solve for x
    x = 11,390,816,911.53/106,401.53
  6. Step 6: Final answer
    x = 107,055.01

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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.