Home / 103,060.56-154,583.40-31,981.38

Finding the Fourth Proportional to 103,060.56, 154,583.40 and 31,981.38

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Solution

The fourth proportional to 103,060.56, 154,583.40 and 31,981.38 is: 47,969.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,060.56 : 154,583.40 = 31,981.38 : x
  2. Step 2: Convert to fraction form
    103,060.56/154,583.40 = 31,981.38/x
  3. Step 3: Cross multiply
    103,060.56x = 154,583.40 × 31,981.38
  4. Step 4: Simplify right side
    103,060.56x = 4,943,790,457.09
  5. Step 5: Solve for x
    x = 4,943,790,457.09/103,060.56
  6. Step 6: Final answer
    x = 47,969.76

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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.