Home / 112,911.95-169,367.99-28,678.43

Finding the Fourth Proportional to 112,911.95, 169,367.99 and 28,678.43

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Solution

The fourth proportional to 112,911.95, 169,367.99 and 28,678.43 is: 43,017.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,911.95 : 169,367.99 = 28,678.43 : x
  2. Step 2: Convert to fraction form
    112,911.95/169,367.99 = 28,678.43/x
  3. Step 3: Cross multiply
    112,911.95x = 169,367.99 × 28,678.43
  4. Step 4: Simplify right side
    112,911.95x = 4,857,207,055.22
  5. Step 5: Solve for x
    x = 4,857,207,055.22/112,911.95
  6. Step 6: Final answer
    x = 43,017.65

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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.