Home / 136,632.77-188,553.55-76,207.32

Finding the Fourth Proportional to 136,632.77, 188,553.55 and 76,207.32

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Solution

The fourth proportional to 136,632.77, 188,553.55 and 76,207.32 is: 105,166.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,632.77 : 188,553.55 = 76,207.32 : x
  2. Step 2: Convert to fraction form
    136,632.77/188,553.55 = 76,207.32/x
  3. Step 3: Cross multiply
    136,632.77x = 188,553.55 × 76,207.32
  4. Step 4: Simplify right side
    136,632.77x = 14,369,160,721.99
  5. Step 5: Solve for x
    x = 14,369,160,721.99/136,632.77
  6. Step 6: Final answer
    x = 105,166.28

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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.