Home / 109,102.35-163,703.21-52,912.11

Finding the Fourth Proportional to 109,102.35, 163,703.21 and 52,912.11

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Solution

The fourth proportional to 109,102.35, 163,703.21 and 52,912.11 is: 79,392.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,102.35 : 163,703.21 = 52,912.11 : x
  2. Step 2: Convert to fraction form
    109,102.35/163,703.21 = 52,912.11/x
  3. Step 3: Cross multiply
    109,102.35x = 163,703.21 × 52,912.11
  4. Step 4: Simplify right side
    109,102.35x = 8,661,881,990.31
  5. Step 5: Solve for x
    x = 8,661,881,990.31/109,102.35
  6. Step 6: Final answer
    x = 79,392.26

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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.