Home / 106,864.96-160,320.32-31,990.88

Finding the Fourth Proportional to 106,864.96, 160,320.32 and 31,990.88

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Solution

The fourth proportional to 106,864.96, 160,320.32 and 31,990.88 is: 47,993.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,864.96 : 160,320.32 = 31,990.88 : x
  2. Step 2: Convert to fraction form
    106,864.96/160,320.32 = 31,990.88/x
  3. Step 3: Cross multiply
    106,864.96x = 160,320.32 × 31,990.88
  4. Step 4: Simplify right side
    106,864.96x = 5,128,788,118.68
  5. Step 5: Solve for x
    x = 5,128,788,118.68/106,864.96
  6. Step 6: Final answer
    x = 47,993.17

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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.