Home / 98,158.80-135,457.20-57,874.26

Finding the Fourth Proportional to 98,158.80, 135,457.20 and 57,874.26

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Solution

The fourth proportional to 98,158.80, 135,457.20 and 57,874.26 is: 79,865.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,158.80 : 135,457.20 = 57,874.26 : x
  2. Step 2: Convert to fraction form
    98,158.80/135,457.20 = 57,874.26/x
  3. Step 3: Cross multiply
    98,158.80x = 135,457.20 × 57,874.26
  4. Step 4: Simplify right side
    98,158.80x = 7,839,485,211.67
  5. Step 5: Solve for x
    x = 7,839,485,211.67/98,158.80
  6. Step 6: Final answer
    x = 79,865.33

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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.