Home / 150,890.80-208,198.20-90,445.36

Finding the Fourth Proportional to 150,890.80, 208,198.20 and 90,445.36

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Solution

The fourth proportional to 150,890.80, 208,198.20 and 90,445.36 is: 124,795.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,890.80 : 208,198.20 = 90,445.36 : x
  2. Step 2: Convert to fraction form
    150,890.80/208,198.20 = 90,445.36/x
  3. Step 3: Cross multiply
    150,890.80x = 208,198.20 × 90,445.36
  4. Step 4: Simplify right side
    150,890.80x = 18,830,561,150.35
  5. Step 5: Solve for x
    x = 18,830,561,150.35/150,890.80
  6. Step 6: Final answer
    x = 124,795.95

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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.