Home / 121,212.89-167,303.22-70,217.36

Finding the Fourth Proportional to 121,212.89, 167,303.22 and 70,217.36

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Solution

The fourth proportional to 121,212.89, 167,303.22 and 70,217.36 is: 96,917.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,212.89 : 167,303.22 = 70,217.36 : x
  2. Step 2: Convert to fraction form
    121,212.89/167,303.22 = 70,217.36/x
  3. Step 3: Cross multiply
    121,212.89x = 167,303.22 × 70,217.36
  4. Step 4: Simplify right side
    121,212.89x = 11,747,590,427.90
  5. Step 5: Solve for x
    x = 11,747,590,427.90/121,212.89
  6. Step 6: Final answer
    x = 96,917.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.