Home / 97,861.57-135,320.83-77,683.46

Finding the Fourth Proportional to 97,861.57, 135,320.83 and 77,683.46

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Solution

The fourth proportional to 97,861.57, 135,320.83 and 77,683.46 is: 107,418.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,861.57 : 135,320.83 = 77,683.46 : x
  2. Step 2: Convert to fraction form
    97,861.57/135,320.83 = 77,683.46/x
  3. Step 3: Cross multiply
    97,861.57x = 135,320.83 × 77,683.46
  4. Step 4: Simplify right side
    97,861.57x = 10,512,189,413.66
  5. Step 5: Solve for x
    x = 10,512,189,413.66/97,861.57
  6. Step 6: Final answer
    x = 107,418.98

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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.