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Finding the Fourth Proportional to 150,841.82, 208,154.98 and 90,445.80

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Solution

The fourth proportional to 150,841.82, 208,154.98 and 90,445.80 is: 124,811.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,841.82 : 208,154.98 = 90,445.80 : x
  2. Step 2: Convert to fraction form
    150,841.82/208,154.98 = 90,445.80/x
  3. Step 3: Cross multiply
    150,841.82x = 208,154.98 × 90,445.80
  4. Step 4: Simplify right side
    150,841.82x = 18,826,743,690.08
  5. Step 5: Solve for x
    x = 18,826,743,690.08/150,841.82
  6. Step 6: Final answer
    x = 124,811.17

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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.