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Finding the Fourth Proportional to 172,814.80, 259,197.59 and 54,470.76

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Solution

The fourth proportional to 172,814.80, 259,197.59 and 54,470.76 is: 81,698.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,814.80 : 259,197.59 = 54,470.76 : x
  2. Step 2: Convert to fraction form
    172,814.80/259,197.59 = 54,470.76/x
  3. Step 3: Cross multiply
    172,814.80x = 259,197.59 × 54,470.76
  4. Step 4: Simplify right side
    172,814.80x = 14,118,689,717.47
  5. Step 5: Solve for x
    x = 14,118,689,717.47/172,814.80
  6. Step 6: Final answer
    x = 81,698.38

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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.