Home / 102,883.46-154,339.98-31,811.64

Finding the Fourth Proportional to 102,883.46, 154,339.98 and 31,811.64

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Solution

The fourth proportional to 102,883.46, 154,339.98 and 31,811.64 is: 47,722.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,883.46 : 154,339.98 = 31,811.64 : x
  2. Step 2: Convert to fraction form
    102,883.46/154,339.98 = 31,811.64/x
  3. Step 3: Cross multiply
    102,883.46x = 154,339.98 × 31,811.64
  4. Step 4: Simplify right side
    102,883.46x = 4,909,807,881.37
  5. Step 5: Solve for x
    x = 4,909,807,881.37/102,883.46
  6. Step 6: Final answer
    x = 47,722.03

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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.