Home / 187,128.23-258,236.73-101,087.19

Finding the Fourth Proportional to 187,128.23, 258,236.73 and 101,087.19

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Solution

The fourth proportional to 187,128.23, 258,236.73 and 101,087.19 is: 139,500.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,128.23 : 258,236.73 = 101,087.19 : x
  2. Step 2: Convert to fraction form
    187,128.23/258,236.73 = 101,087.19/x
  3. Step 3: Cross multiply
    187,128.23x = 258,236.73 × 101,087.19
  4. Step 4: Simplify right side
    187,128.23x = 26,104,425,390.49
  5. Step 5: Solve for x
    x = 26,104,425,390.49/187,128.23
  6. Step 6: Final answer
    x = 139,500.20

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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.