Home / 187,621.11-258,893.42-149,477.40

Finding the Fourth Proportional to 187,621.11, 258,893.42 and 149,477.40

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Solution

The fourth proportional to 187,621.11, 258,893.42 and 149,477.40 is: 206,259.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,621.11 : 258,893.42 = 149,477.40 : x
  2. Step 2: Convert to fraction form
    187,621.11/258,893.42 = 149,477.40/x
  3. Step 3: Cross multiply
    187,621.11x = 258,893.42 × 149,477.40
  4. Step 4: Simplify right side
    187,621.11x = 38,698,714,551.32
  5. Step 5: Solve for x
    x = 38,698,714,551.32/187,621.11
  6. Step 6: Final answer
    x = 206,259.92

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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.