Home / 187,102.24-258,114.72-111,623.20

Finding the Fourth Proportional to 187,102.24, 258,114.72 and 111,623.20

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Solution

The fourth proportional to 187,102.24, 258,114.72 and 111,623.20 is: 153,988.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,102.24 : 258,114.72 = 111,623.20 : x
  2. Step 2: Convert to fraction form
    187,102.24/258,114.72 = 111,623.20/x
  3. Step 3: Cross multiply
    187,102.24x = 258,114.72 × 111,623.20
  4. Step 4: Simplify right side
    187,102.24x = 28,811,591,013.50
  5. Step 5: Solve for x
    x = 28,811,591,013.50/187,102.24
  6. Step 6: Final answer
    x = 153,988.49

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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.