Home / 102,851.58-141,921-57,527.22

Finding the Fourth Proportional to 102,851.58, 141,921 and 57,527.22

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Solution

The fourth proportional to 102,851.58, 141,921 and 57,527.22 is: 79,379.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,851.58 : 141,921 = 57,527.22 : x
  2. Step 2: Convert to fraction form
    102,851.58/141,921 = 57,527.22/x
  3. Step 3: Cross multiply
    102,851.58x = 141,921 × 57,527.22
  4. Step 4: Simplify right side
    102,851.58x = 8,164,320,589.62
  5. Step 5: Solve for x
    x = 8,164,320,589.62/102,851.58
  6. Step 6: Final answer
    x = 79,379.63

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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.