Home / 131,473.20-197,209.80-90,001.20

Finding the Fourth Proportional to 131,473.20, 197,209.80 and 90,001.20

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Solution

The fourth proportional to 131,473.20, 197,209.80 and 90,001.20 is: 135,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,473.20 : 197,209.80 = 90,001.20 : x
  2. Step 2: Convert to fraction form
    131,473.20/197,209.80 = 90,001.20/x
  3. Step 3: Cross multiply
    131,473.20x = 197,209.80 × 90,001.20
  4. Step 4: Simplify right side
    131,473.20x = 17,749,118,651.76
  5. Step 5: Solve for x
    x = 17,749,118,651.76/131,473.20
  6. Step 6: Final answer
    x = 135,001.80

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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.