Home / 137,094.51-189,189.13-76,664.46

Finding the Fourth Proportional to 137,094.51, 189,189.13 and 76,664.46

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Solution

The fourth proportional to 137,094.51, 189,189.13 and 76,664.46 is: 105,796.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,094.51 : 189,189.13 = 76,664.46 : x
  2. Step 2: Convert to fraction form
    137,094.51/189,189.13 = 76,664.46/x
  3. Step 3: Cross multiply
    137,094.51x = 189,189.13 × 76,664.46
  4. Step 4: Simplify right side
    137,094.51x = 14,504,082,489.32
  5. Step 5: Solve for x
    x = 14,504,082,489.32/137,094.51
  6. Step 6: Final answer
    x = 105,796.23

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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.