Home / 136,090.13-187,804.37-76,474.13

Finding the Fourth Proportional to 136,090.13, 187,804.37 and 76,474.13

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Solution

The fourth proportional to 136,090.13, 187,804.37 and 76,474.13 is: 105,534.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,090.13 : 187,804.37 = 76,474.13 : x
  2. Step 2: Convert to fraction form
    136,090.13/187,804.37 = 76,474.13/x
  3. Step 3: Cross multiply
    136,090.13x = 187,804.37 × 76,474.13
  4. Step 4: Simplify right side
    136,090.13x = 14,362,175,058.11
  5. Step 5: Solve for x
    x = 14,362,175,058.11/136,090.13
  6. Step 6: Final answer
    x = 105,534.29

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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.