Home / 103,982.90-155,985.28-33,867.68

Finding the Fourth Proportional to 103,982.90, 155,985.28 and 33,867.68

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Solution

The fourth proportional to 103,982.90, 155,985.28 and 33,867.68 is: 50,805.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,982.90 : 155,985.28 = 33,867.68 : x
  2. Step 2: Convert to fraction form
    103,982.90/155,985.28 = 33,867.68/x
  3. Step 3: Cross multiply
    103,982.90x = 155,985.28 × 33,867.68
  4. Step 4: Simplify right side
    103,982.90x = 5,282,859,547.75
  5. Step 5: Solve for x
    x = 5,282,859,547.75/103,982.90
  6. Step 6: Final answer
    x = 50,805.08

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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.