Home / 113,840.24-170,494.70-89,987.67

Finding the Fourth Proportional to 113,840.24, 170,494.70 and 89,987.67

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Solution

The fourth proportional to 113,840.24, 170,494.70 and 89,987.67 is: 134,771.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,840.24 : 170,494.70 = 89,987.67 : x
  2. Step 2: Convert to fraction form
    113,840.24/170,494.70 = 89,987.67/x
  3. Step 3: Cross multiply
    113,840.24x = 170,494.70 × 89,987.67
  4. Step 4: Simplify right side
    113,840.24x = 15,342,420,350.41
  5. Step 5: Solve for x
    x = 15,342,420,350.41/113,840.24
  6. Step 6: Final answer
    x = 134,771.51

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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.