Home / 98,158.64-135,465.62-54,556.40

Finding the Fourth Proportional to 98,158.64, 135,465.62 and 54,556.40

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Solution

The fourth proportional to 98,158.64, 135,465.62 and 54,556.40 is: 75,291.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,158.64 : 135,465.62 = 54,556.40 : x
  2. Step 2: Convert to fraction form
    98,158.64/135,465.62 = 54,556.40/x
  3. Step 3: Cross multiply
    98,158.64x = 135,465.62 × 54,556.40
  4. Step 4: Simplify right side
    98,158.64x = 7,390,516,616.85
  5. Step 5: Solve for x
    x = 7,390,516,616.85/98,158.64
  6. Step 6: Final answer
    x = 75,291.56

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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.