Home / 120,984.43-166,913.90-73,220.35

Finding the Fourth Proportional to 120,984.43, 166,913.90 and 73,220.35

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Solution

The fourth proportional to 120,984.43, 166,913.90 and 73,220.35 is: 101,017.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,984.43 : 166,913.90 = 73,220.35 : x
  2. Step 2: Convert to fraction form
    120,984.43/166,913.90 = 73,220.35/x
  3. Step 3: Cross multiply
    120,984.43x = 166,913.90 × 73,220.35
  4. Step 4: Simplify right side
    120,984.43x = 12,221,493,811.76
  5. Step 5: Solve for x
    x = 12,221,493,811.76/120,984.43
  6. Step 6: Final answer
    x = 101,017.08

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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.