Home / 138,596.04-191,311.68-82,007.28

Finding the Fourth Proportional to 138,596.04, 191,311.68 and 82,007.28

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Solution

The fourth proportional to 138,596.04, 191,311.68 and 82,007.28 is: 113,199.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,596.04 : 191,311.68 = 82,007.28 : x
  2. Step 2: Convert to fraction form
    138,596.04/191,311.68 = 82,007.28/x
  3. Step 3: Cross multiply
    138,596.04x = 191,311.68 × 82,007.28
  4. Step 4: Simplify right side
    138,596.04x = 15,688,950,509.03
  5. Step 5: Solve for x
    x = 15,688,950,509.03/138,596.04
  6. Step 6: Final answer
    x = 113,199.13

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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.