Home / 209,815.80-289,547.10-124,936.44

Finding the Fourth Proportional to 209,815.80, 289,547.10 and 124,936.44

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Solution

The fourth proportional to 209,815.80, 289,547.10 and 124,936.44 is: 172,413.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,815.80 : 289,547.10 = 124,936.44 : x
  2. Step 2: Convert to fraction form
    209,815.80/289,547.10 = 124,936.44/x
  3. Step 3: Cross multiply
    209,815.80x = 289,547.10 × 124,936.44
  4. Step 4: Simplify right side
    209,815.80x = 36,174,983,886.32
  5. Step 5: Solve for x
    x = 36,174,983,886.32/209,815.80
  6. Step 6: Final answer
    x = 172,413.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.