Home / 102,904.30-154,126.05-84,472.30

Finding the Fourth Proportional to 102,904.30, 154,126.05 and 84,472.30

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Solution

The fourth proportional to 102,904.30, 154,126.05 and 84,472.30 is: 126,519.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,904.30 : 154,126.05 = 84,472.30 : x
  2. Step 2: Convert to fraction form
    102,904.30/154,126.05 = 84,472.30/x
  3. Step 3: Cross multiply
    102,904.30x = 154,126.05 × 84,472.30
  4. Step 4: Simplify right side
    102,904.30x = 13,019,381,933.42
  5. Step 5: Solve for x
    x = 13,019,381,933.42/102,904.30
  6. Step 6: Final answer
    x = 126,519.32

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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.