Home / 125,849.94-188,781.42-45,886.05

Finding the Fourth Proportional to 125,849.94, 188,781.42 and 45,886.05

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Solution

The fourth proportional to 125,849.94, 188,781.42 and 45,886.05 is: 68,831.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,849.94 : 188,781.42 = 45,886.05 : x
  2. Step 2: Convert to fraction form
    125,849.94/188,781.42 = 45,886.05/x
  3. Step 3: Cross multiply
    125,849.94x = 188,781.42 × 45,886.05
  4. Step 4: Simplify right side
    125,849.94x = 8,662,433,677.19
  5. Step 5: Solve for x
    x = 8,662,433,677.19/125,849.94
  6. Step 6: Final answer
    x = 68,831.45

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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.