Home / 213,813.28-294,966.66-123,145.48

Finding the Fourth Proportional to 213,813.28, 294,966.66 and 123,145.48

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Solution

The fourth proportional to 213,813.28, 294,966.66 and 123,145.48 is: 169,885.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,813.28 : 294,966.66 = 123,145.48 : x
  2. Step 2: Convert to fraction form
    213,813.28/294,966.66 = 123,145.48/x
  3. Step 3: Cross multiply
    213,813.28x = 294,966.66 × 123,145.48
  4. Step 4: Simplify right side
    213,813.28x = 36,323,810,929.70
  5. Step 5: Solve for x
    x = 36,323,810,929.70/213,813.28
  6. Step 6: Final answer
    x = 169,885.66

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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.