Home / 111,510.36-154,012.08-73,440.06

Finding the Fourth Proportional to 111,510.36, 154,012.08 and 73,440.06

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Solution

The fourth proportional to 111,510.36, 154,012.08 and 73,440.06 is: 101,431.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,510.36 : 154,012.08 = 73,440.06 : x
  2. Step 2: Convert to fraction form
    111,510.36/154,012.08 = 73,440.06/x
  3. Step 3: Cross multiply
    111,510.36x = 154,012.08 × 73,440.06
  4. Step 4: Simplify right side
    111,510.36x = 11,310,656,395.92
  5. Step 5: Solve for x
    x = 11,310,656,395.92/111,510.36
  6. Step 6: Final answer
    x = 101,431.44

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1.5x scale

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.