Home / 78,697.06-118,126.23-61,356.58

Finding the Fourth Proportional to 78,697.06, 118,126.23 and 61,356.58

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Solution

The fourth proportional to 78,697.06, 118,126.23 and 61,356.58 is: 92,097.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,697.06 : 118,126.23 = 61,356.58 : x
  2. Step 2: Convert to fraction form
    78,697.06/118,126.23 = 61,356.58/x
  3. Step 3: Cross multiply
    78,697.06x = 118,126.23 × 61,356.58
  4. Step 4: Simplify right side
    78,697.06x = 7,247,821,481.09
  5. Step 5: Solve for x
    x = 7,247,821,481.09/78,697.06
  6. Step 6: Final answer
    x = 92,097.74

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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.