Home / 103,096.18-154,381.75-67,929.22

Finding the Fourth Proportional to 103,096.18, 154,381.75 and 67,929.22

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Solution

The fourth proportional to 103,096.18, 154,381.75 and 67,929.22 is: 101,720.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,096.18 : 154,381.75 = 67,929.22 : x
  2. Step 2: Convert to fraction form
    103,096.18/154,381.75 = 67,929.22/x
  3. Step 3: Cross multiply
    103,096.18x = 154,381.75 × 67,929.22
  4. Step 4: Simplify right side
    103,096.18x = 10,487,031,859.74
  5. Step 5: Solve for x
    x = 10,487,031,859.74/103,096.18
  6. Step 6: Final answer
    x = 101,720.86

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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.