Home / 103,438.09-155,157.14-33,317.40

Finding the Fourth Proportional to 103,438.09, 155,157.14 and 33,317.40

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Solution

The fourth proportional to 103,438.09, 155,157.14 and 33,317.40 is: 49,976.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,438.09 : 155,157.14 = 33,317.40 : x
  2. Step 2: Convert to fraction form
    103,438.09/155,157.14 = 33,317.40/x
  3. Step 3: Cross multiply
    103,438.09x = 155,157.14 × 33,317.40
  4. Step 4: Simplify right side
    103,438.09x = 5,169,432,496.24
  5. Step 5: Solve for x
    x = 5,169,432,496.24/103,438.09
  6. Step 6: Final answer
    x = 49,976.10

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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.