Home / 109,493.08-151,089.12-80,827.96

Finding the Fourth Proportional to 109,493.08, 151,089.12 and 80,827.96

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Solution

The fourth proportional to 109,493.08, 151,089.12 and 80,827.96 is: 111,534.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,493.08 : 151,089.12 = 80,827.96 : x
  2. Step 2: Convert to fraction form
    109,493.08/151,089.12 = 80,827.96/x
  3. Step 3: Cross multiply
    109,493.08x = 151,089.12 × 80,827.96
  4. Step 4: Simplify right side
    109,493.08x = 12,212,225,347.80
  5. Step 5: Solve for x
    x = 12,212,225,347.80/109,493.08
  6. Step 6: Final answer
    x = 111,534.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.