Home / 213,381.87-294,470.06-117,890.76

Finding the Fourth Proportional to 213,381.87, 294,470.06 and 117,890.76

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Solution

The fourth proportional to 213,381.87, 294,470.06 and 117,890.76 is: 162,690.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,381.87 : 294,470.06 = 117,890.76 : x
  2. Step 2: Convert to fraction form
    213,381.87/294,470.06 = 117,890.76/x
  3. Step 3: Cross multiply
    213,381.87x = 294,470.06 × 117,890.76
  4. Step 4: Simplify right side
    213,381.87x = 34,715,299,170.65
  5. Step 5: Solve for x
    x = 34,715,299,170.65/213,381.87
  6. Step 6: Final answer
    x = 162,690.95

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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.