Home / 102,572.09-141,556.62-57,258.92

Finding the Fourth Proportional to 102,572.09, 141,556.62 and 57,258.92

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Solution

The fourth proportional to 102,572.09, 141,556.62 and 57,258.92 is: 79,021.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,572.09 : 141,556.62 = 57,258.92 : x
  2. Step 2: Convert to fraction form
    102,572.09/141,556.62 = 57,258.92/x
  3. Step 3: Cross multiply
    102,572.09x = 141,556.62 × 57,258.92
  4. Step 4: Simplify right side
    102,572.09x = 8,105,379,180.05
  5. Step 5: Solve for x
    x = 8,105,379,180.05/102,572.09
  6. Step 6: Final answer
    x = 79,021.29

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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.