Home / 108,390.63-162,516.57-52,118.66

Finding the Fourth Proportional to 108,390.63, 162,516.57 and 52,118.66

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Solution

The fourth proportional to 108,390.63, 162,516.57 and 52,118.66 is: 78,144.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,390.63 : 162,516.57 = 52,118.66 : x
  2. Step 2: Convert to fraction form
    108,390.63/162,516.57 = 52,118.66/x
  3. Step 3: Cross multiply
    108,390.63x = 162,516.57 × 52,118.66
  4. Step 4: Simplify right side
    108,390.63x = 8,470,145,043.61
  5. Step 5: Solve for x
    x = 8,470,145,043.61/108,390.63
  6. Step 6: Final answer
    x = 78,144.62

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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.