Home / 97,828.36-135,060.42-70,945

Finding the Fourth Proportional to 97,828.36, 135,060.42 and 70,945

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Solution

The fourth proportional to 97,828.36, 135,060.42 and 70,945 is: 97,945.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,828.36 : 135,060.42 = 70,945 : x
  2. Step 2: Convert to fraction form
    97,828.36/135,060.42 = 70,945/x
  3. Step 3: Cross multiply
    97,828.36x = 135,060.42 × 70,945
  4. Step 4: Simplify right side
    97,828.36x = 9,581,861,496.90
  5. Step 5: Solve for x
    x = 9,581,861,496.90/97,828.36
  6. Step 6: Final answer
    x = 97,945.64

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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.