Home / 120,786.20-166,658.08-73,038.52

Finding the Fourth Proportional to 120,786.20, 166,658.08 and 73,038.52

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Solution

The fourth proportional to 120,786.20, 166,658.08 and 73,038.52 is: 100,776.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,786.20 : 166,658.08 = 73,038.52 : x
  2. Step 2: Convert to fraction form
    120,786.20/166,658.08 = 73,038.52/x
  3. Step 3: Cross multiply
    120,786.20x = 166,658.08 × 73,038.52
  4. Step 4: Simplify right side
    120,786.20x = 12,172,459,509.24
  5. Step 5: Solve for x
    x = 12,172,459,509.24/120,786.20
  6. Step 6: Final answer
    x = 100,776.91

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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.