Home / 125,103.12-172,633.32-68,505.36

Finding the Fourth Proportional to 125,103.12, 172,633.32 and 68,505.36

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Solution

The fourth proportional to 125,103.12, 172,633.32 and 68,505.36 is: 94,532.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,103.12 : 172,633.32 = 68,505.36 : x
  2. Step 2: Convert to fraction form
    125,103.12/172,633.32 = 68,505.36/x
  3. Step 3: Cross multiply
    125,103.12x = 172,633.32 × 68,505.36
  4. Step 4: Simplify right side
    125,103.12x = 11,826,307,734.60
  5. Step 5: Solve for x
    x = 11,826,307,734.60/125,103.12
  6. Step 6: Final answer
    x = 94,532.48

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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.