Home / 98,218.36-135,503.04-55,771.12

Finding the Fourth Proportional to 98,218.36, 135,503.04 and 55,771.12

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Solution

The fourth proportional to 98,218.36, 135,503.04 and 55,771.12 is: 76,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,218.36 : 135,503.04 = 55,771.12 : x
  2. Step 2: Convert to fraction form
    98,218.36/135,503.04 = 55,771.12/x
  3. Step 3: Cross multiply
    98,218.36x = 135,503.04 × 55,771.12
  4. Step 4: Simplify right side
    98,218.36x = 7,557,156,304.20
  5. Step 5: Solve for x
    x = 7,557,156,304.20/98,218.36
  6. Step 6: Final answer
    x = 76,942.40

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1.5x scale

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.