Home / 172,664.83-258,510.30-91,427.77

Finding the Fourth Proportional to 172,664.83, 258,510.30 and 91,427.77

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Solution

The fourth proportional to 172,664.83, 258,510.30 and 91,427.77 is: 136,883.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,664.83 : 258,510.30 = 91,427.77 : x
  2. Step 2: Convert to fraction form
    172,664.83/258,510.30 = 91,427.77/x
  3. Step 3: Cross multiply
    172,664.83x = 258,510.30 × 91,427.77
  4. Step 4: Simplify right side
    172,664.83x = 23,635,020,251.03
  5. Step 5: Solve for x
    x = 23,635,020,251.03/172,664.83
  6. Step 6: Final answer
    x = 136,883.81

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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.