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Finding the Fourth Proportional to 163,846.80, 245,865.70 and 69,071.18

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Solution

The fourth proportional to 163,846.80, 245,865.70 and 69,071.18 is: 103,647.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,846.80 : 245,865.70 = 69,071.18 : x
  2. Step 2: Convert to fraction form
    163,846.80/245,865.70 = 69,071.18/x
  3. Step 3: Cross multiply
    163,846.80x = 245,865.70 × 69,071.18
  4. Step 4: Simplify right side
    163,846.80x = 16,982,234,020.53
  5. Step 5: Solve for x
    x = 16,982,234,020.53/163,846.80
  6. Step 6: Final answer
    x = 103,647.03

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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.