Home / 172,350.12-258,385.44-77,510.88

Finding the Fourth Proportional to 172,350.12, 258,385.44 and 77,510.88

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Solution

The fourth proportional to 172,350.12, 258,385.44 and 77,510.88 is: 116,203.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,350.12 : 258,385.44 = 77,510.88 : x
  2. Step 2: Convert to fraction form
    172,350.12/258,385.44 = 77,510.88/x
  3. Step 3: Cross multiply
    172,350.12x = 258,385.44 × 77,510.88
  4. Step 4: Simplify right side
    172,350.12x = 20,027,682,833.59
  5. Step 5: Solve for x
    x = 20,027,682,833.59/172,350.12
  6. Step 6: Final answer
    x = 116,203.47

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1.5x scale

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.