Home / 125,383.07-188,104.98-72,109.15

Finding the Fourth Proportional to 125,383.07, 188,104.98 and 72,109.15

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Solution

The fourth proportional to 125,383.07, 188,104.98 and 72,109.15 is: 108,181.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,383.07 : 188,104.98 = 72,109.15 : x
  2. Step 2: Convert to fraction form
    125,383.07/188,104.98 = 72,109.15/x
  3. Step 3: Cross multiply
    125,383.07x = 188,104.98 × 72,109.15
  4. Step 4: Simplify right side
    125,383.07x = 13,564,089,278.04
  5. Step 5: Solve for x
    x = 13,564,089,278.04/125,383.07
  6. Step 6: Final answer
    x = 108,181.19

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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.