Home / 123,115,138.56-169,899,056.55-67,365,796.68

Finding the Fourth Proportional to 123,115,138.56, 169,899,056.55 and 67,365,796.68

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Solution

The fourth proportional to 123,115,138.56, 169,899,056.55 and 67,365,796.68 is: 92,964,889.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,115,138.56 : 169,899,056.55 = 67,365,796.68 : x
  2. Step 2: Convert to fraction form
    123,115,138.56/169,899,056.55 = 67,365,796.68/x
  3. Step 3: Cross multiply
    123,115,138.56x = 169,899,056.55 × 67,365,796.68
  4. Step 4: Simplify right side
    123,115,138.56x = 11,445,385,299,671,124
  5. Step 5: Solve for x
    x = 11,445,385,299,671,124/123,115,138.56
  6. Step 6: Final answer
    x = 92,964,889.89

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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.