Home / 121,311.26-167,409.55-70,353.55

Finding the Fourth Proportional to 121,311.26, 167,409.55 and 70,353.55

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Solution

The fourth proportional to 121,311.26, 167,409.55 and 70,353.55 is: 97,087.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,311.26 : 167,409.55 = 70,353.55 : x
  2. Step 2: Convert to fraction form
    121,311.26/167,409.55 = 70,353.55/x
  3. Step 3: Cross multiply
    121,311.26x = 167,409.55 × 70,353.55
  4. Step 4: Simplify right side
    121,311.26x = 11,777,856,047.87
  5. Step 5: Solve for x
    x = 11,777,856,047.87/121,311.26
  6. Step 6: Final answer
    x = 97,087.91

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1.5x scale

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.