Home / 213,447.43-294,426.93-136,940.50

Finding the Fourth Proportional to 213,447.43, 294,426.93 and 136,940.50

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Solution

The fourth proportional to 213,447.43, 294,426.93 and 136,940.50 is: 188,894.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,447.43 : 294,426.93 = 136,940.50 : x
  2. Step 2: Convert to fraction form
    213,447.43/294,426.93 = 136,940.50/x
  3. Step 3: Cross multiply
    213,447.43x = 294,426.93 × 136,940.50
  4. Step 4: Simplify right side
    213,447.43x = 40,318,971,007.67
  5. Step 5: Solve for x
    x = 40,318,971,007.67/213,447.43
  6. Step 6: Final answer
    x = 188,894.15

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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.