Home / 187,077.12-258,171.48-111,669.36

Finding the Fourth Proportional to 187,077.12, 258,171.48 and 111,669.36

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Solution

The fourth proportional to 187,077.12, 258,171.48 and 111,669.36 is: 154,106.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,077.12 : 258,171.48 = 111,669.36 : x
  2. Step 2: Convert to fraction form
    187,077.12/258,171.48 = 111,669.36/x
  3. Step 3: Cross multiply
    187,077.12x = 258,171.48 × 111,669.36
  4. Step 4: Simplify right side
    187,077.12x = 28,829,843,941.85
  5. Step 5: Solve for x
    x = 28,829,843,941.85/187,077.12
  6. Step 6: Final answer
    x = 154,106.73

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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.