Home / 111,769.12-167,428.77-51,713.02

Finding the Fourth Proportional to 111,769.12, 167,428.77 and 51,713.02

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Solution

The fourth proportional to 111,769.12, 167,428.77 and 51,713.02 is: 77,465.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,769.12 : 167,428.77 = 51,713.02 : x
  2. Step 2: Convert to fraction form
    111,769.12/167,428.77 = 51,713.02/x
  3. Step 3: Cross multiply
    111,769.12x = 167,428.77 × 51,713.02
  4. Step 4: Simplify right side
    111,769.12x = 8,658,247,331.59
  5. Step 5: Solve for x
    x = 8,658,247,331.59/111,769.12
  6. Step 6: Final answer
    x = 77,465.47

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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.