Home / 143,265.86-197,702.97-79,602.02

Finding the Fourth Proportional to 143,265.86, 197,702.97 and 79,602.02

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Solution

The fourth proportional to 143,265.86, 197,702.97 and 79,602.02 is: 109,848.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,265.86 : 197,702.97 = 79,602.02 : x
  2. Step 2: Convert to fraction form
    143,265.86/197,702.97 = 79,602.02/x
  3. Step 3: Cross multiply
    143,265.86x = 197,702.97 × 79,602.02
  4. Step 4: Simplify right side
    143,265.86x = 15,737,555,772.00
  5. Step 5: Solve for x
    x = 15,737,555,772.00/143,265.86
  6. Step 6: Final answer
    x = 109,848.61

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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.