Home / 111,723.18-167,639.40-52,564.74

Finding the Fourth Proportional to 111,723.18, 167,639.40 and 52,564.74

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Solution

The fourth proportional to 111,723.18, 167,639.40 and 52,564.74 is: 78,872.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,723.18 : 167,639.40 = 52,564.74 : x
  2. Step 2: Convert to fraction form
    111,723.18/167,639.40 = 52,564.74/x
  3. Step 3: Cross multiply
    111,723.18x = 167,639.40 × 52,564.74
  4. Step 4: Simplify right side
    111,723.18x = 8,811,921,474.76
  5. Step 5: Solve for x
    x = 8,811,921,474.76/111,723.18
  6. Step 6: Final answer
    x = 78,872.81

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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.