Home / 100,317.23-138,415.03-68,056.25

Finding the Fourth Proportional to 100,317.23, 138,415.03 and 68,056.25

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Solution

The fourth proportional to 100,317.23, 138,415.03 and 68,056.25 is: 93,902.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,317.23 : 138,415.03 = 68,056.25 : x
  2. Step 2: Convert to fraction form
    100,317.23/138,415.03 = 68,056.25/x
  3. Step 3: Cross multiply
    100,317.23x = 138,415.03 × 68,056.25
  4. Step 4: Simplify right side
    100,317.23x = 9,420,007,885.44
  5. Step 5: Solve for x
    x = 9,420,007,885.44/100,317.23
  6. Step 6: Final answer
    x = 93,902.19

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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.