Home / 111,601.12-154,009.44-61,303.36

Finding the Fourth Proportional to 111,601.12, 154,009.44 and 61,303.36

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Solution

The fourth proportional to 111,601.12, 154,009.44 and 61,303.36 is: 84,598.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,601.12 : 154,009.44 = 61,303.36 : x
  2. Step 2: Convert to fraction form
    111,601.12/154,009.44 = 61,303.36/x
  3. Step 3: Cross multiply
    111,601.12x = 154,009.44 × 61,303.36
  4. Step 4: Simplify right side
    111,601.12x = 9,441,296,143.72
  5. Step 5: Solve for x
    x = 9,441,296,143.72/111,601.12
  6. Step 6: Final answer
    x = 84,598.58

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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.