Home / 119,121.06-164,389.64-65,409.53

Finding the Fourth Proportional to 119,121.06, 164,389.64 and 65,409.53

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Solution

The fourth proportional to 119,121.06, 164,389.64 and 65,409.53 is: 90,266.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,121.06 : 164,389.64 = 65,409.53 : x
  2. Step 2: Convert to fraction form
    119,121.06/164,389.64 = 65,409.53/x
  3. Step 3: Cross multiply
    119,121.06x = 164,389.64 × 65,409.53
  4. Step 4: Simplify right side
    119,121.06x = 10,752,649,089.27
  5. Step 5: Solve for x
    x = 10,752,649,089.27/119,121.06
  6. Step 6: Final answer
    x = 90,266.57

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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.