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Finding the Fourth Proportional to 150,407.90, 207,556.82 and 89,942.90

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Solution

The fourth proportional to 150,407.90, 207,556.82 and 89,942.90 is: 124,117.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,407.90 : 207,556.82 = 89,942.90 : x
  2. Step 2: Convert to fraction form
    150,407.90/207,556.82 = 89,942.90/x
  3. Step 3: Cross multiply
    150,407.90x = 207,556.82 × 89,942.90
  4. Step 4: Simplify right side
    150,407.90x = 18,668,262,305.58
  5. Step 5: Solve for x
    x = 18,668,262,305.58/150,407.90
  6. Step 6: Final answer
    x = 124,117.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.