Home / 102,027.80-140,791.57-56,702.84

Finding the Fourth Proportional to 102,027.80, 140,791.57 and 56,702.84

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Solution

The fourth proportional to 102,027.80, 140,791.57 and 56,702.84 is: 78,246.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,027.80 : 140,791.57 = 56,702.84 : x
  2. Step 2: Convert to fraction form
    102,027.80/140,791.57 = 56,702.84/x
  3. Step 3: Cross multiply
    102,027.80x = 140,791.57 × 56,702.84
  4. Step 4: Simplify right side
    102,027.80x = 7,983,281,021.34
  5. Step 5: Solve for x
    x = 7,983,281,021.34/102,027.80
  6. Step 6: Final answer
    x = 78,246.13

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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.