Home / 186,632.47-280,056.98-78,553.77

Finding the Fourth Proportional to 186,632.47, 280,056.98 and 78,553.77

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Solution

The fourth proportional to 186,632.47, 280,056.98 and 78,553.77 is: 117,876.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,632.47 : 280,056.98 = 78,553.77 : x
  2. Step 2: Convert to fraction form
    186,632.47/280,056.98 = 78,553.77/x
  3. Step 3: Cross multiply
    186,632.47x = 280,056.98 × 78,553.77
  4. Step 4: Simplify right side
    186,632.47x = 21,999,531,593.81
  5. Step 5: Solve for x
    x = 21,999,531,593.81/186,632.47
  6. Step 6: Final answer
    x = 117,876.23

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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.