Home / 111,567.56-167,351.40-70,043.72

Finding the Fourth Proportional to 111,567.56, 167,351.40 and 70,043.72

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Solution

The fourth proportional to 111,567.56, 167,351.40 and 70,043.72 is: 105,065.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,567.56 : 167,351.40 = 70,043.72 : x
  2. Step 2: Convert to fraction form
    111,567.56/167,351.40 = 70,043.72/x
  3. Step 3: Cross multiply
    111,567.56x = 167,351.40 × 70,043.72
  4. Step 4: Simplify right side
    111,567.56x = 11,721,914,603.21
  5. Step 5: Solve for x
    x = 11,721,914,603.21/111,567.56
  6. Step 6: Final answer
    x = 105,065.62

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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.