Home / 103,698.20-155,547.30-41,413.40

Finding the Fourth Proportional to 103,698.20, 155,547.30 and 41,413.40

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Solution

The fourth proportional to 103,698.20, 155,547.30 and 41,413.40 is: 62,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,698.20 : 155,547.30 = 41,413.40 : x
  2. Step 2: Convert to fraction form
    103,698.20/155,547.30 = 41,413.40/x
  3. Step 3: Cross multiply
    103,698.20x = 155,547.30 × 41,413.40
  4. Step 4: Simplify right side
    103,698.20x = 6,441,742,553.82
  5. Step 5: Solve for x
    x = 6,441,742,553.82/103,698.20
  6. Step 6: Final answer
    x = 62,120.10

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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.