Home / 121,308.20-167,405.98-70,351.16

Finding the Fourth Proportional to 121,308.20, 167,405.98 and 70,351.16

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Solution

The fourth proportional to 121,308.20, 167,405.98 and 70,351.16 is: 97,084.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,308.20 : 167,405.98 = 70,351.16 : x
  2. Step 2: Convert to fraction form
    121,308.20/167,405.98 = 70,351.16/x
  3. Step 3: Cross multiply
    121,308.20x = 167,405.98 × 70,351.16
  4. Step 4: Simplify right side
    121,308.20x = 11,777,204,883.94
  5. Step 5: Solve for x
    x = 11,777,204,883.94/121,308.20
  6. Step 6: Final answer
    x = 97,084.99

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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.