Home / 113,727.67-170,739.33-87,450.86

Finding the Fourth Proportional to 113,727.67, 170,739.33 and 87,450.86

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Solution

The fourth proportional to 113,727.67, 170,739.33 and 87,450.86 is: 131,289.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,727.67 : 170,739.33 = 87,450.86 : x
  2. Step 2: Convert to fraction form
    113,727.67/170,739.33 = 87,450.86/x
  3. Step 3: Cross multiply
    113,727.67x = 170,739.33 × 87,450.86
  4. Step 4: Simplify right side
    113,727.67x = 14,931,300,807.07
  5. Step 5: Solve for x
    x = 14,931,300,807.07/113,727.67
  6. Step 6: Final answer
    x = 131,289.96

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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.