Home / 102,397.21-141,316.37-57,089.86

Finding the Fourth Proportional to 102,397.21, 141,316.37 and 57,089.86

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Solution

The fourth proportional to 102,397.21, 141,316.37 and 57,089.86 is: 78,788.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,397.21 : 141,316.37 = 57,089.86 : x
  2. Step 2: Convert to fraction form
    102,397.21/141,316.37 = 57,089.86/x
  3. Step 3: Cross multiply
    102,397.21x = 141,316.37 × 57,089.86
  4. Step 4: Simplify right side
    102,397.21x = 8,067,731,493.56
  5. Step 5: Solve for x
    x = 8,067,731,493.56/102,397.21
  6. Step 6: Final answer
    x = 78,788.59

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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.