Home / 111,688.15-167,291.64-52,435.03

Finding the Fourth Proportional to 111,688.15, 167,291.64 and 52,435.03

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Solution

The fourth proportional to 111,688.15, 167,291.64 and 52,435.03 is: 78,539.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,688.15 : 167,291.64 = 52,435.03 : x
  2. Step 2: Convert to fraction form
    111,688.15/167,291.64 = 52,435.03/x
  3. Step 3: Cross multiply
    111,688.15x = 167,291.64 × 52,435.03
  4. Step 4: Simplify right side
    111,688.15x = 8,771,942,162.15
  5. Step 5: Solve for x
    x = 8,771,942,162.15/111,688.15
  6. Step 6: Final answer
    x = 78,539.60

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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.