Home / 106,931.72-160,324.67-54,239.60

Finding the Fourth Proportional to 106,931.72, 160,324.67 and 54,239.60

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Solution

The fourth proportional to 106,931.72, 160,324.67 and 54,239.60 is: 81,322.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,931.72 : 160,324.67 = 54,239.60 : x
  2. Step 2: Convert to fraction form
    106,931.72/160,324.67 = 54,239.60/x
  3. Step 3: Cross multiply
    106,931.72x = 160,324.67 × 54,239.60
  4. Step 4: Simplify right side
    106,931.72x = 8,695,946,106.53
  5. Step 5: Solve for x
    x = 8,695,946,106.53/106,931.72
  6. Step 6: Final answer
    x = 81,322.42

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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.