Home / 121,846,380.76-168,147,025.84-66,091,662.52

Finding the Fourth Proportional to 121,846,380.76, 168,147,025.84 and 66,091,662.52

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Solution

The fourth proportional to 121,846,380.76, 168,147,025.84 and 66,091,662.52 is: 91,205,962.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,846,380.76 : 168,147,025.84 = 66,091,662.52 : x
  2. Step 2: Convert to fraction form
    121,846,380.76/168,147,025.84 = 66,091,662.52/x
  3. Step 3: Cross multiply
    121,846,380.76x = 168,147,025.84 × 66,091,662.52
  4. Step 4: Simplify right side
    121,846,380.76x = 11,113,116,485,559,000
  5. Step 5: Solve for x
    x = 11,113,116,485,559,000/121,846,380.76
  6. Step 6: Final answer
    x = 91,205,962.92

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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.