Home / 97,845.31-135,166.32-76,522.06

Finding the Fourth Proportional to 97,845.31, 135,166.32 and 76,522.06

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Solution

The fourth proportional to 97,845.31, 135,166.32 and 76,522.06 is: 105,709.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,845.31 : 135,166.32 = 76,522.06 : x
  2. Step 2: Convert to fraction form
    97,845.31/135,166.32 = 76,522.06/x
  3. Step 3: Cross multiply
    97,845.31x = 135,166.32 × 76,522.06
  4. Step 4: Simplify right side
    97,845.31x = 10,343,205,249.02
  5. Step 5: Solve for x
    x = 10,343,205,249.02/97,845.31
  6. Step 6: Final answer
    x = 105,709.77

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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.