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Finding the Fourth Proportional to 154,682.77, 213,062.93 and 109,281.94

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Solution

The fourth proportional to 154,682.77, 213,062.93 and 109,281.94 is: 150,526.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,682.77 : 213,062.93 = 109,281.94 : x
  2. Step 2: Convert to fraction form
    154,682.77/213,062.93 = 109,281.94/x
  3. Step 3: Cross multiply
    154,682.77x = 213,062.93 × 109,281.94
  4. Step 4: Simplify right side
    154,682.77x = 23,283,928,720.76
  5. Step 5: Solve for x
    x = 23,283,928,720.76/154,682.77
  6. Step 6: Final answer
    x = 150,526.98

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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.