Home / 131,362.29-197,107.83-81,429.17

Finding the Fourth Proportional to 131,362.29, 197,107.83 and 81,429.17

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Solution

The fourth proportional to 131,362.29, 197,107.83 and 81,429.17 is: 122,183.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,362.29 : 197,107.83 = 81,429.17 : x
  2. Step 2: Convert to fraction form
    131,362.29/197,107.83 = 81,429.17/x
  3. Step 3: Cross multiply
    131,362.29x = 197,107.83 × 81,429.17
  4. Step 4: Simplify right side
    131,362.29x = 16,050,326,011.86
  5. Step 5: Solve for x
    x = 16,050,326,011.86/131,362.29
  6. Step 6: Final answer
    x = 122,183.66

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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.