Home / 187,398.12-258,608.62-101,357.20

Finding the Fourth Proportional to 187,398.12, 258,608.62 and 101,357.20

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Solution

The fourth proportional to 187,398.12, 258,608.62 and 101,357.20 is: 139,872.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,398.12 : 258,608.62 = 101,357.20 : x
  2. Step 2: Convert to fraction form
    187,398.12/258,608.62 = 101,357.20/x
  3. Step 3: Cross multiply
    187,398.12x = 258,608.62 × 101,357.20
  4. Step 4: Simplify right side
    187,398.12x = 26,211,845,619.06
  5. Step 5: Solve for x
    x = 26,211,845,619.06/187,398.12
  6. Step 6: Final answer
    x = 139,872.51

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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.