Home / 111,812.13-167,684.06-31,856.63

Finding the Fourth Proportional to 111,812.13, 167,684.06 and 31,856.63

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Solution

The fourth proportional to 111,812.13, 167,684.06 and 31,856.63 is: 47,775.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,812.13 : 167,684.06 = 31,856.63 : x
  2. Step 2: Convert to fraction form
    111,812.13/167,684.06 = 31,856.63/x
  3. Step 3: Cross multiply
    111,812.13x = 167,684.06 × 31,856.63
  4. Step 4: Simplify right side
    111,812.13x = 5,341,848,058.61
  5. Step 5: Solve for x
    x = 5,341,848,058.61/111,812.13
  6. Step 6: Final answer
    x = 47,775.21

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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.