Home / 103,056.20-154,606.32-31,977.28

Finding the Fourth Proportional to 103,056.20, 154,606.32 and 31,977.28

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Solution

The fourth proportional to 103,056.20, 154,606.32 and 31,977.28 is: 47,972.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,056.20 : 154,606.32 = 31,977.28 : x
  2. Step 2: Convert to fraction form
    103,056.20/154,606.32 = 31,977.28/x
  3. Step 3: Cross multiply
    103,056.20x = 154,606.32 × 31,977.28
  4. Step 4: Simplify right side
    103,056.20x = 4,943,889,777.67
  5. Step 5: Solve for x
    x = 4,943,889,777.67/103,056.20
  6. Step 6: Final answer
    x = 47,972.76

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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.