Home / 97,670.40-134,553.60-80,563.20

Finding the Fourth Proportional to 97,670.40, 134,553.60 and 80,563.20

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Solution

The fourth proportional to 97,670.40, 134,553.60 and 80,563.20 is: 110,986.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,670.40 : 134,553.60 = 80,563.20 : x
  2. Step 2: Convert to fraction form
    97,670.40/134,553.60 = 80,563.20/x
  3. Step 3: Cross multiply
    97,670.40x = 134,553.60 × 80,563.20
  4. Step 4: Simplify right side
    97,670.40x = 10,840,068,587.52
  5. Step 5: Solve for x
    x = 10,840,068,587.52/97,670.40
  6. Step 6: Final answer
    x = 110,986.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.