Home / 102,913.20-154,304.10-43,718.40

Finding the Fourth Proportional to 102,913.20, 154,304.10 and 43,718.40

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Solution

The fourth proportional to 102,913.20, 154,304.10 and 43,718.40 is: 65,549.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,913.20 : 154,304.10 = 43,718.40 : x
  2. Step 2: Convert to fraction form
    102,913.20/154,304.10 = 43,718.40/x
  3. Step 3: Cross multiply
    102,913.20x = 154,304.10 × 43,718.40
  4. Step 4: Simplify right side
    102,913.20x = 6,745,928,365.44
  5. Step 5: Solve for x
    x = 6,745,928,365.44/102,913.20
  6. Step 6: Final answer
    x = 65,549.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.