Home / 152,981.82-211,082.43-89,290.92

Finding the Fourth Proportional to 152,981.82, 211,082.43 and 89,290.92

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Solution

The fourth proportional to 152,981.82, 211,082.43 and 89,290.92 is: 123,202.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,981.82 : 211,082.43 = 89,290.92 : x
  2. Step 2: Convert to fraction form
    152,981.82/211,082.43 = 89,290.92/x
  3. Step 3: Cross multiply
    152,981.82x = 211,082.43 × 89,290.92
  4. Step 4: Simplify right side
    152,981.82x = 18,847,744,370.54
  5. Step 5: Solve for x
    x = 18,847,744,370.54/152,981.82
  6. Step 6: Final answer
    x = 123,202.51

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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.