Home / 125,855.17-188,561.32-118,363.38

Finding the Fourth Proportional to 125,855.17, 188,561.32 and 118,363.38

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Solution

The fourth proportional to 125,855.17, 188,561.32 and 118,363.38 is: 177,336.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,855.17 : 188,561.32 = 118,363.38 : x
  2. Step 2: Convert to fraction form
    125,855.17/188,561.32 = 118,363.38/x
  3. Step 3: Cross multiply
    125,855.17x = 188,561.32 × 118,363.38
  4. Step 4: Simplify right side
    125,855.17x = 22,318,754,169.45
  5. Step 5: Solve for x
    x = 22,318,754,169.45/125,855.17
  6. Step 6: Final answer
    x = 177,336.81

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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.