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Finding the Fourth Proportional to 163,589.65, 245,384.13 and 45,260.65

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Solution

The fourth proportional to 163,589.65, 245,384.13 and 45,260.65 is: 67,890.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,589.65 : 245,384.13 = 45,260.65 : x
  2. Step 2: Convert to fraction form
    163,589.65/245,384.13 = 45,260.65/x
  3. Step 3: Cross multiply
    163,589.65x = 245,384.13 × 45,260.65
  4. Step 4: Simplify right side
    163,589.65x = 11,106,245,009.80
  5. Step 5: Solve for x
    x = 11,106,245,009.80/163,589.65
  6. Step 6: Final answer
    x = 67,890.88

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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.