Home / 121,353.72-167,465.28-70,375.56

Finding the Fourth Proportional to 121,353.72, 167,465.28 and 70,375.56

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Solution

The fourth proportional to 121,353.72, 167,465.28 and 70,375.56 is: 97,116.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,353.72 : 167,465.28 = 70,375.56 : x
  2. Step 2: Convert to fraction form
    121,353.72/167,465.28 = 70,375.56/x
  3. Step 3: Cross multiply
    121,353.72x = 167,465.28 × 70,375.56
  4. Step 4: Simplify right side
    121,353.72x = 11,785,462,860.56
  5. Step 5: Solve for x
    x = 11,785,462,860.56/121,353.72
  6. Step 6: Final answer
    x = 97,116.62

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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.