Home / 115,655.10-173,137.05-68,883.90

Finding the Fourth Proportional to 115,655.10, 173,137.05 and 68,883.90

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Solution

The fourth proportional to 115,655.10, 173,137.05 and 68,883.90 is: 103,120.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,655.10 : 173,137.05 = 68,883.90 : x
  2. Step 2: Convert to fraction form
    115,655.10/173,137.05 = 68,883.90/x
  3. Step 3: Cross multiply
    115,655.10x = 173,137.05 × 68,883.90
  4. Step 4: Simplify right side
    115,655.10x = 11,926,355,238.50
  5. Step 5: Solve for x
    x = 11,926,355,238.50/115,655.10
  6. Step 6: Final answer
    x = 103,120.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.