Home / 103,412.90-155,084.43-39,355.84

Finding the Fourth Proportional to 103,412.90, 155,084.43 and 39,355.84

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Solution

The fourth proportional to 103,412.90, 155,084.43 and 39,355.84 is: 59,020.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,412.90 : 155,084.43 = 39,355.84 : x
  2. Step 2: Convert to fraction form
    103,412.90/155,084.43 = 39,355.84/x
  3. Step 3: Cross multiply
    103,412.90x = 155,084.43 × 39,355.84
  4. Step 4: Simplify right side
    103,412.90x = 6,103,477,238.15
  5. Step 5: Solve for x
    x = 6,103,477,238.15/103,412.90
  6. Step 6: Final answer
    x = 59,020.47

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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.