Home / 111,475.20-167,087-55,355.36

Finding the Fourth Proportional to 111,475.20, 167,087 and 55,355.36

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Solution

The fourth proportional to 111,475.20, 167,087 and 55,355.36 is: 82,970.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,475.20 : 167,087 = 55,355.36 : x
  2. Step 2: Convert to fraction form
    111,475.20/167,087 = 55,355.36/x
  3. Step 3: Cross multiply
    111,475.20x = 167,087 × 55,355.36
  4. Step 4: Simplify right side
    111,475.20x = 9,249,161,036.32
  5. Step 5: Solve for x
    x = 9,249,161,036.32/111,475.20
  6. Step 6: Final answer
    x = 82,970.57

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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.