Home / 99,356.39-149,593.94-87,585.77

Finding the Fourth Proportional to 99,356.39, 149,593.94 and 87,585.77

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Solution

The fourth proportional to 99,356.39, 149,593.94 and 87,585.77 is: 131,871.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,356.39 : 149,593.94 = 87,585.77 : x
  2. Step 2: Convert to fraction form
    99,356.39/149,593.94 = 87,585.77/x
  3. Step 3: Cross multiply
    99,356.39x = 149,593.94 × 87,585.77
  4. Step 4: Simplify right side
    99,356.39x = 13,102,300,686.74
  5. Step 5: Solve for x
    x = 13,102,300,686.74/99,356.39
  6. Step 6: Final answer
    x = 131,871.75

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.