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Finding the Fourth Proportional to 163,830.51, 245,841.30 and 69,054.90

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Solution

The fourth proportional to 163,830.51, 245,841.30 and 69,054.90 is: 103,622.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,830.51 : 245,841.30 = 69,054.90 : x
  2. Step 2: Convert to fraction form
    163,830.51/245,841.30 = 69,054.90/x
  3. Step 3: Cross multiply
    163,830.51x = 245,841.30 × 69,054.90
  4. Step 4: Simplify right side
    163,830.51x = 16,976,546,387.37
  5. Step 5: Solve for x
    x = 16,976,546,387.37/163,830.51
  6. Step 6: Final answer
    x = 103,622.62

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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.