Home / 154,556.60-231,878.10-75,673.40

Finding the Fourth Proportional to 154,556.60, 231,878.10 and 75,673.40

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Solution

The fourth proportional to 154,556.60, 231,878.10 and 75,673.40 is: 113,531.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,556.60 : 231,878.10 = 75,673.40 : x
  2. Step 2: Convert to fraction form
    154,556.60/231,878.10 = 75,673.40/x
  3. Step 3: Cross multiply
    154,556.60x = 231,878.10 × 75,673.40
  4. Step 4: Simplify right side
    154,556.60x = 17,547,004,212.54
  5. Step 5: Solve for x
    x = 17,547,004,212.54/154,556.60
  6. Step 6: Final answer
    x = 113,531.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.