Home / 136,764.04-188,726.70-76,338.58

Finding the Fourth Proportional to 136,764.04, 188,726.70 and 76,338.58

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Solution

The fourth proportional to 136,764.04, 188,726.70 and 76,338.58 is: 105,342.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,764.04 : 188,726.70 = 76,338.58 : x
  2. Step 2: Convert to fraction form
    136,764.04/188,726.70 = 76,338.58/x
  3. Step 3: Cross multiply
    136,764.04x = 188,726.70 × 76,338.58
  4. Step 4: Simplify right side
    136,764.04x = 14,407,128,521.99
  5. Step 5: Solve for x
    x = 14,407,128,521.99/136,764.04
  6. Step 6: Final answer
    x = 105,342.96

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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.