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Finding the Fourth Proportional to 154,968, 213,613.22 and 101,226.12

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Solution

The fourth proportional to 154,968, 213,613.22 and 101,226.12 is: 139,533.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,968 : 213,613.22 = 101,226.12 : x
  2. Step 2: Convert to fraction form
    154,968/213,613.22 = 101,226.12/x
  3. Step 3: Cross multiply
    154,968x = 213,613.22 × 101,226.12
  4. Step 4: Simplify right side
    154,968x = 21,623,237,441.31
  5. Step 5: Solve for x
    x = 21,623,237,441.31/154,968
  6. Step 6: Final answer
    x = 139,533.56

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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.