Home / 98,197.09-135,563.77-66,100.46

Finding the Fourth Proportional to 98,197.09, 135,563.77 and 66,100.46

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Solution

The fourth proportional to 98,197.09, 135,563.77 and 66,100.46 is: 91,253.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,197.09 : 135,563.77 = 66,100.46 : x
  2. Step 2: Convert to fraction form
    98,197.09/135,563.77 = 66,100.46/x
  3. Step 3: Cross multiply
    98,197.09x = 135,563.77 × 66,100.46
  4. Step 4: Simplify right side
    98,197.09x = 8,960,827,599.75
  5. Step 5: Solve for x
    x = 8,960,827,599.75/98,197.09
  6. Step 6: Final answer
    x = 91,253.49

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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.