Home / 213,155.18-294,161.55-117,665.42

Finding the Fourth Proportional to 213,155.18, 294,161.55 and 117,665.42

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Solution

The fourth proportional to 213,155.18, 294,161.55 and 117,665.42 is: 162,382.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,155.18 : 294,161.55 = 117,665.42 : x
  2. Step 2: Convert to fraction form
    213,155.18/294,161.55 = 117,665.42/x
  3. Step 3: Cross multiply
    213,155.18x = 294,161.55 × 117,665.42
  4. Step 4: Simplify right side
    213,155.18x = 34,612,642,328.60
  5. Step 5: Solve for x
    x = 34,612,642,328.60/213,155.18
  6. Step 6: Final answer
    x = 162,382.37

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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.