Home / 131,455.20-197,182.80-89,983.20

Finding the Fourth Proportional to 131,455.20, 197,182.80 and 89,983.20

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Solution

The fourth proportional to 131,455.20, 197,182.80 and 89,983.20 is: 134,974.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,455.20 : 197,182.80 = 89,983.20 : x
  2. Step 2: Convert to fraction form
    131,455.20/197,182.80 = 89,983.20/x
  3. Step 3: Cross multiply
    131,455.20x = 197,182.80 × 89,983.20
  4. Step 4: Simplify right side
    131,455.20x = 17,743,139,328.96
  5. Step 5: Solve for x
    x = 17,743,139,328.96/131,455.20
  6. Step 6: Final answer
    x = 134,974.80

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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.