Home / 125,971.20-188,737.92-105,166.08

Finding the Fourth Proportional to 125,971.20, 188,737.92 and 105,166.08

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Solution

The fourth proportional to 125,971.20, 188,737.92 and 105,166.08 is: 157,566.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,971.20 : 188,737.92 = 105,166.08 : x
  2. Step 2: Convert to fraction form
    125,971.20/188,737.92 = 105,166.08/x
  3. Step 3: Cross multiply
    125,971.20x = 188,737.92 × 105,166.08
  4. Step 4: Simplify right side
    125,971.20x = 19,848,827,193.75
  5. Step 5: Solve for x
    x = 19,848,827,193.75/125,971.20
  6. Step 6: Final answer
    x = 157,566.39

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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.