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Finding the Fourth Proportional to 163,474.65, 245,215.06 and 45,149.13

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Solution

The fourth proportional to 163,474.65, 245,215.06 and 45,149.13 is: 67,724.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,474.65 : 245,215.06 = 45,149.13 : x
  2. Step 2: Convert to fraction form
    163,474.65/245,215.06 = 45,149.13/x
  3. Step 3: Cross multiply
    163,474.65x = 245,215.06 × 45,149.13
  4. Step 4: Simplify right side
    163,474.65x = 11,071,246,509.03
  5. Step 5: Solve for x
    x = 11,071,246,509.03/163,474.65
  6. Step 6: Final answer
    x = 67,724.55

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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.