Home / 126,051.60-188,899.20-69,916.44

Finding the Fourth Proportional to 126,051.60, 188,899.20 and 69,916.44

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Solution

The fourth proportional to 126,051.60, 188,899.20 and 69,916.44 is: 104,775.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,051.60 : 188,899.20 = 69,916.44 : x
  2. Step 2: Convert to fraction form
    126,051.60/188,899.20 = 69,916.44/x
  3. Step 3: Cross multiply
    126,051.60x = 188,899.20 × 69,916.44
  4. Step 4: Simplify right side
    126,051.60x = 13,207,159,582.85
  5. Step 5: Solve for x
    x = 13,207,159,582.85/126,051.60
  6. Step 6: Final answer
    x = 104,775.82

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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.