Home / 136,553.23-188,449.23-76,123.81

Finding the Fourth Proportional to 136,553.23, 188,449.23 and 76,123.81

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Solution

The fourth proportional to 136,553.23, 188,449.23 and 76,123.81 is: 105,054.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,553.23 : 188,449.23 = 76,123.81 : x
  2. Step 2: Convert to fraction form
    136,553.23/188,449.23 = 76,123.81/x
  3. Step 3: Cross multiply
    136,553.23x = 188,449.23 × 76,123.81
  4. Step 4: Simplify right side
    136,553.23x = 14,345,473,379.17
  5. Step 5: Solve for x
    x = 14,345,473,379.17/136,553.23
  6. Step 6: Final answer
    x = 105,054.08

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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.