Home / 172,970.28-259,374.78-89,841.96

Finding the Fourth Proportional to 172,970.28, 259,374.78 and 89,841.96

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Solution

The fourth proportional to 172,970.28, 259,374.78 and 89,841.96 is: 134,721.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,970.28 : 259,374.78 = 89,841.96 : x
  2. Step 2: Convert to fraction form
    172,970.28/259,374.78 = 89,841.96/x
  3. Step 3: Cross multiply
    172,970.28x = 259,374.78 × 89,841.96
  4. Step 4: Simplify right side
    172,970.28x = 23,302,738,609.77
  5. Step 5: Solve for x
    x = 23,302,738,609.77/172,970.28
  6. Step 6: Final answer
    x = 134,721.06

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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.