Home / 187,064.16-258,064.56-115,447.20

Finding the Fourth Proportional to 187,064.16, 258,064.56 and 115,447.20

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Solution

The fourth proportional to 187,064.16, 258,064.56 and 115,447.20 is: 159,265.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,064.16 : 258,064.56 = 115,447.20 : x
  2. Step 2: Convert to fraction form
    187,064.16/258,064.56 = 115,447.20/x
  3. Step 3: Cross multiply
    187,064.16x = 258,064.56 × 115,447.20
  4. Step 4: Simplify right side
    187,064.16x = 29,792,830,871.23
  5. Step 5: Solve for x
    x = 29,792,830,871.23/187,064.16
  6. Step 6: Final answer
    x = 159,265.31

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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.