Home / 121,942.88-168,269.76-75,998.24

Finding the Fourth Proportional to 121,942.88, 168,269.76 and 75,998.24

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Solution

The fourth proportional to 121,942.88, 168,269.76 and 75,998.24 is: 104,870.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,942.88 : 168,269.76 = 75,998.24 : x
  2. Step 2: Convert to fraction form
    121,942.88/168,269.76 = 75,998.24/x
  3. Step 3: Cross multiply
    121,942.88x = 168,269.76 × 75,998.24
  4. Step 4: Simplify right side
    121,942.88x = 12,788,205,605.22
  5. Step 5: Solve for x
    x = 12,788,205,605.22/121,942.88
  6. Step 6: Final answer
    x = 104,870.46

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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.