Home / 113,727.17-170,738.57-87,450.36

Finding the Fourth Proportional to 113,727.17, 170,738.57 and 87,450.36

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Solution

The fourth proportional to 113,727.17, 170,738.57 and 87,450.36 is: 131,289.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,727.17 : 170,738.57 = 87,450.36 : x
  2. Step 2: Convert to fraction form
    113,727.17/170,738.57 = 87,450.36/x
  3. Step 3: Cross multiply
    113,727.17x = 170,738.57 × 87,450.36
  4. Step 4: Simplify right side
    113,727.17x = 14,931,149,631.01
  5. Step 5: Solve for x
    x = 14,931,149,631.01/113,727.17
  6. Step 6: Final answer
    x = 131,289.21

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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.