Home / 103,980.96-155,971.20-33,860.16

Finding the Fourth Proportional to 103,980.96, 155,971.20 and 33,860.16

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Solution

The fourth proportional to 103,980.96, 155,971.20 and 33,860.16 is: 50,790.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,980.96 : 155,971.20 = 33,860.16 : x
  2. Step 2: Convert to fraction form
    103,980.96/155,971.20 = 33,860.16/x
  3. Step 3: Cross multiply
    103,980.96x = 155,971.20 × 33,860.16
  4. Step 4: Simplify right side
    103,980.96x = 5,281,209,787.39
  5. Step 5: Solve for x
    x = 5,281,209,787.39/103,980.96
  6. Step 6: Final answer
    x = 50,790.16

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1.5x scale

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.