Home / 142,805.53-197,064.73-82,395.65

Finding the Fourth Proportional to 142,805.53, 197,064.73 and 82,395.65

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Solution

The fourth proportional to 142,805.53, 197,064.73 and 82,395.65 is: 113,702.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,805.53 : 197,064.73 = 82,395.65 : x
  2. Step 2: Convert to fraction form
    142,805.53/197,064.73 = 82,395.65/x
  3. Step 3: Cross multiply
    142,805.53x = 197,064.73 × 82,395.65
  4. Step 4: Simplify right side
    142,805.53x = 16,237,276,520.42
  5. Step 5: Solve for x
    x = 16,237,276,520.42/142,805.53
  6. Step 6: Final answer
    x = 113,702.02

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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.