Home / 187,606.32-258,845.40-120,577.20

Finding the Fourth Proportional to 187,606.32, 258,845.40 and 120,577.20

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Solution

The fourth proportional to 187,606.32, 258,845.40 and 120,577.20 is: 166,363.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,606.32 : 258,845.40 = 120,577.20 : x
  2. Step 2: Convert to fraction form
    187,606.32/258,845.40 = 120,577.20/x
  3. Step 3: Cross multiply
    187,606.32x = 258,845.40 × 120,577.20
  4. Step 4: Simplify right side
    187,606.32x = 31,210,853,564.88
  5. Step 5: Solve for x
    x = 31,210,853,564.88/187,606.32
  6. Step 6: Final answer
    x = 166,363.55

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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.