Home / 102,983.16-154,489.35-31,911.38

Finding the Fourth Proportional to 102,983.16, 154,489.35 and 31,911.38

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Solution

The fourth proportional to 102,983.16, 154,489.35 and 31,911.38 is: 47,871.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,983.16 : 154,489.35 = 31,911.38 : x
  2. Step 2: Convert to fraction form
    102,983.16/154,489.35 = 31,911.38/x
  3. Step 3: Cross multiply
    102,983.16x = 154,489.35 × 31,911.38
  4. Step 4: Simplify right side
    102,983.16x = 4,929,967,581.36
  5. Step 5: Solve for x
    x = 4,929,967,581.36/102,983.16
  6. Step 6: Final answer
    x = 47,871.59

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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.