Home / 121,937.56-168,289.26-74,188.04

Finding the Fourth Proportional to 121,937.56, 168,289.26 and 74,188.04

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Solution

The fourth proportional to 121,937.56, 168,289.26 and 74,188.04 is: 102,388.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,937.56 : 168,289.26 = 74,188.04 : x
  2. Step 2: Convert to fraction form
    121,937.56/168,289.26 = 74,188.04/x
  3. Step 3: Cross multiply
    121,937.56x = 168,289.26 × 74,188.04
  4. Step 4: Simplify right side
    121,937.56x = 12,485,050,352.45
  5. Step 5: Solve for x
    x = 12,485,050,352.45/121,937.56
  6. Step 6: Final answer
    x = 102,388.88

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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.