Home / 102,558.35-141,530.22-57,235.85

Finding the Fourth Proportional to 102,558.35, 141,530.22 and 57,235.85

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Solution

The fourth proportional to 102,558.35, 141,530.22 and 57,235.85 is: 78,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,558.35 : 141,530.22 = 57,235.85 : x
  2. Step 2: Convert to fraction form
    102,558.35/141,530.22 = 57,235.85/x
  3. Step 3: Cross multiply
    102,558.35x = 141,530.22 × 57,235.85
  4. Step 4: Simplify right side
    102,558.35x = 8,100,602,442.39
  5. Step 5: Solve for x
    x = 8,100,602,442.39/102,558.35
  6. Step 6: Final answer
    x = 78,985.30

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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.