Home / 136,664.88-205,005.96-57,768.72

Finding the Fourth Proportional to 136,664.88, 205,005.96 and 57,768.72

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Solution

The fourth proportional to 136,664.88, 205,005.96 and 57,768.72 is: 86,656.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,664.88 : 205,005.96 = 57,768.72 : x
  2. Step 2: Convert to fraction form
    136,664.88/205,005.96 = 57,768.72/x
  3. Step 3: Cross multiply
    136,664.88x = 205,005.96 × 57,768.72
  4. Step 4: Simplify right side
    136,664.88x = 11,842,931,901.57
  5. Step 5: Solve for x
    x = 11,842,931,901.57/136,664.88
  6. Step 6: Final answer
    x = 86,656.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.