Home / 136,849.51-188,850.54-76,421.22

Finding the Fourth Proportional to 136,849.51, 188,850.54 and 76,421.22

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Solution

The fourth proportional to 136,849.51, 188,850.54 and 76,421.22 is: 105,460.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,849.51 : 188,850.54 = 76,421.22 : x
  2. Step 2: Convert to fraction form
    136,849.51/188,850.54 = 76,421.22/x
  3. Step 3: Cross multiply
    136,849.51x = 188,850.54 × 76,421.22
  4. Step 4: Simplify right side
    136,849.51x = 14,432,188,664.46
  5. Step 5: Solve for x
    x = 14,432,188,664.46/136,849.51
  6. Step 6: Final answer
    x = 105,460.29

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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.