Home / 157,324.96-236,063.58-78,450.40

Finding the Fourth Proportional to 157,324.96, 236,063.58 and 78,450.40

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Solution

The fourth proportional to 157,324.96, 236,063.58 and 78,450.40 is: 117,713.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,324.96 : 236,063.58 = 78,450.40 : x
  2. Step 2: Convert to fraction form
    157,324.96/236,063.58 = 78,450.40/x
  3. Step 3: Cross multiply
    157,324.96x = 236,063.58 × 78,450.40
  4. Step 4: Simplify right side
    157,324.96x = 18,519,282,276.43
  5. Step 5: Solve for x
    x = 18,519,282,276.43/157,324.96
  6. Step 6: Final answer
    x = 117,713.57

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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.