Home / 111,837.60-167,756.40-106,653.60

Finding the Fourth Proportional to 111,837.60, 167,756.40 and 106,653.60

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Solution

The fourth proportional to 111,837.60, 167,756.40 and 106,653.60 is: 159,980.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,837.60 : 167,756.40 = 106,653.60 : x
  2. Step 2: Convert to fraction form
    111,837.60/167,756.40 = 106,653.60/x
  3. Step 3: Cross multiply
    111,837.60x = 167,756.40 × 106,653.60
  4. Step 4: Simplify right side
    111,837.60x = 17,891,823,983.04
  5. Step 5: Solve for x
    x = 17,891,823,983.04/111,837.60
  6. Step 6: Final answer
    x = 159,980.40

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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.