Home / 97,505.10-134,619.57-79,642.98

Finding the Fourth Proportional to 97,505.10, 134,619.57 and 79,642.98

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Solution

The fourth proportional to 97,505.10, 134,619.57 and 79,642.98 is: 109,958.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,505.10 : 134,619.57 = 79,642.98 : x
  2. Step 2: Convert to fraction form
    97,505.10/134,619.57 = 79,642.98/x
  3. Step 3: Cross multiply
    97,505.10x = 134,619.57 × 79,642.98
  4. Step 4: Simplify right side
    97,505.10x = 10,721,503,721.12
  5. Step 5: Solve for x
    x = 10,721,503,721.12/97,505.10
  6. Step 6: Final answer
    x = 109,958.39

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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.