Home / 142,246.62-196,299.93-81,828.90

Finding the Fourth Proportional to 142,246.62, 196,299.93 and 81,828.90

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Solution

The fourth proportional to 142,246.62, 196,299.93 and 81,828.90 is: 112,923.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,246.62 : 196,299.93 = 81,828.90 : x
  2. Step 2: Convert to fraction form
    142,246.62/196,299.93 = 81,828.90/x
  3. Step 3: Cross multiply
    142,246.62x = 196,299.93 × 81,828.90
  4. Step 4: Simplify right side
    142,246.62x = 16,063,007,341.98
  5. Step 5: Solve for x
    x = 16,063,007,341.98/142,246.62
  6. Step 6: Final answer
    x = 112,923.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.