Home / 121,212.17-181,757.41-70,627.54

Finding the Fourth Proportional to 121,212.17, 181,757.41 and 70,627.54

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Solution

The fourth proportional to 121,212.17, 181,757.41 and 70,627.54 is: 105,905.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,212.17 : 181,757.41 = 70,627.54 : x
  2. Step 2: Convert to fraction form
    121,212.17/181,757.41 = 70,627.54/x
  3. Step 3: Cross multiply
    121,212.17x = 181,757.41 × 70,627.54
  4. Step 4: Simplify right side
    121,212.17x = 12,837,078,114.11
  5. Step 5: Solve for x
    x = 12,837,078,114.11/121,212.17
  6. Step 6: Final answer
    x = 105,905.86

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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.