Home / 102,730.99-141,768.35-57,408.96

Finding the Fourth Proportional to 102,730.99, 141,768.35 and 57,408.96

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Solution

The fourth proportional to 102,730.99, 141,768.35 and 57,408.96 is: 79,224.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,730.99 : 141,768.35 = 57,408.96 : x
  2. Step 2: Convert to fraction form
    102,730.99/141,768.35 = 57,408.96/x
  3. Step 3: Cross multiply
    102,730.99x = 141,768.35 × 57,408.96
  4. Step 4: Simplify right side
    102,730.99x = 8,138,773,534.42
  5. Step 5: Solve for x
    x = 8,138,773,534.42/102,730.99
  6. Step 6: Final answer
    x = 79,224.13

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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.