Home / 215,154.76-322,436.89-136,127.51

Finding the Fourth Proportional to 215,154.76, 322,436.89 and 136,127.51

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Solution

The fourth proportional to 215,154.76, 322,436.89 and 136,127.51 is: 204,004.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,154.76 : 322,436.89 = 136,127.51 : x
  2. Step 2: Convert to fraction form
    215,154.76/322,436.89 = 136,127.51/x
  3. Step 3: Cross multiply
    215,154.76x = 322,436.89 × 136,127.51
  4. Step 4: Simplify right side
    215,154.76x = 43,892,531,450.38
  5. Step 5: Solve for x
    x = 43,892,531,450.38/215,154.76
  6. Step 6: Final answer
    x = 204,004.47

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1.5x scale

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.