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Finding the Fourth Proportional to 131,897.80, 197,841.90 and 52,990.60

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Solution

The fourth proportional to 131,897.80, 197,841.90 and 52,990.60 is: 79,483.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,897.80 : 197,841.90 = 52,990.60 : x
  2. Step 2: Convert to fraction form
    131,897.80/197,841.90 = 52,990.60/x
  3. Step 3: Cross multiply
    131,897.80x = 197,841.90 × 52,990.60
  4. Step 4: Simplify right side
    131,897.80x = 10,483,760,986.14
  5. Step 5: Solve for x
    x = 10,483,760,986.14/131,897.80
  6. Step 6: Final answer
    x = 79,483.97

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1.5x scale

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.