Home / 102,516.22-153,778.96-31,433.67

Finding the Fourth Proportional to 102,516.22, 153,778.96 and 31,433.67

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Solution

The fourth proportional to 102,516.22, 153,778.96 and 31,433.67 is: 47,151.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,516.22 : 153,778.96 = 31,433.67 : x
  2. Step 2: Convert to fraction form
    102,516.22/153,778.96 = 31,433.67/x
  3. Step 3: Cross multiply
    102,516.22x = 153,778.96 × 31,433.67
  4. Step 4: Simplify right side
    102,516.22x = 4,833,837,081.58
  5. Step 5: Solve for x
    x = 4,833,837,081.58/102,516.22
  6. Step 6: Final answer
    x = 47,151.92

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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.