Home / 213,442.47-294,561.94-122,812.20

Finding the Fourth Proportional to 213,442.47, 294,561.94 and 122,812.20

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Solution

The fourth proportional to 213,442.47, 294,561.94 and 122,812.20 is: 169,487.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,442.47 : 294,561.94 = 122,812.20 : x
  2. Step 2: Convert to fraction form
    213,442.47/294,561.94 = 122,812.20/x
  3. Step 3: Cross multiply
    213,442.47x = 294,561.94 × 122,812.20
  4. Step 4: Simplify right side
    213,442.47x = 36,175,800,156.32
  5. Step 5: Solve for x
    x = 36,175,800,156.32/213,442.47
  6. Step 6: Final answer
    x = 169,487.36

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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.