Home / 78,166.04-117,190.73-36,603.32

Finding the Fourth Proportional to 78,166.04, 117,190.73 and 36,603.32

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Solution

The fourth proportional to 78,166.04, 117,190.73 and 36,603.32 is: 54,877.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,166.04 : 117,190.73 = 36,603.32 : x
  2. Step 2: Convert to fraction form
    78,166.04/117,190.73 = 36,603.32/x
  3. Step 3: Cross multiply
    78,166.04x = 117,190.73 × 36,603.32
  4. Step 4: Simplify right side
    78,166.04x = 4,289,569,296.78
  5. Step 5: Solve for x
    x = 4,289,569,296.78/78,166.04
  6. Step 6: Final answer
    x = 54,877.66

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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.