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Finding the Fourth Proportional to 172,890.45, 259,335.27 and 48,231.45

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Solution

The fourth proportional to 172,890.45, 259,335.27 and 48,231.45 is: 72,347.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,890.45 : 259,335.27 = 48,231.45 : x
  2. Step 2: Convert to fraction form
    172,890.45/259,335.27 = 48,231.45/x
  3. Step 3: Cross multiply
    172,890.45x = 259,335.27 × 48,231.45
  4. Step 4: Simplify right side
    172,890.45x = 12,508,116,108.24
  5. Step 5: Solve for x
    x = 12,508,116,108.24/172,890.45
  6. Step 6: Final answer
    x = 72,347.06

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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.