Home / 131,943.80-197,543.10-102,702.80

Finding the Fourth Proportional to 131,943.80, 197,543.10 and 102,702.80

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Solution

The fourth proportional to 131,943.80, 197,543.10 and 102,702.80 is: 153,764.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,943.80 : 197,543.10 = 102,702.80 : x
  2. Step 2: Convert to fraction form
    131,943.80/197,543.10 = 102,702.80/x
  3. Step 3: Cross multiply
    131,943.80x = 197,543.10 × 102,702.80
  4. Step 4: Simplify right side
    131,943.80x = 20,288,229,490.68
  5. Step 5: Solve for x
    x = 20,288,229,490.68/131,943.80
  6. Step 6: Final answer
    x = 153,764.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.