Home / 109,818.30-164,909.64-68,527.74

Finding the Fourth Proportional to 109,818.30, 164,909.64 and 68,527.74

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Solution

The fourth proportional to 109,818.30, 164,909.64 and 68,527.74 is: 102,905.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,818.30 : 164,909.64 = 68,527.74 : x
  2. Step 2: Convert to fraction form
    109,818.30/164,909.64 = 68,527.74/x
  3. Step 3: Cross multiply
    109,818.30x = 164,909.64 × 68,527.74
  4. Step 4: Simplify right side
    109,818.30x = 11,300,884,933.41
  5. Step 5: Solve for x
    x = 11,300,884,933.41/109,818.30
  6. Step 6: Final answer
    x = 102,905.30

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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.