Home / 109,705.88-164,560.35-38,630.81

Finding the Fourth Proportional to 109,705.88, 164,560.35 and 38,630.81

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Solution

The fourth proportional to 109,705.88, 164,560.35 and 38,630.81 is: 57,946.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,705.88 : 164,560.35 = 38,630.81 : x
  2. Step 2: Convert to fraction form
    109,705.88/164,560.35 = 38,630.81/x
  3. Step 3: Cross multiply
    109,705.88x = 164,560.35 × 38,630.81
  4. Step 4: Simplify right side
    109,705.88x = 6,357,099,614.38
  5. Step 5: Solve for x
    x = 6,357,099,614.38/109,705.88
  6. Step 6: Final answer
    x = 57,946.75

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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.