Home / 136,758.58-188,708.03-76,323.57

Finding the Fourth Proportional to 136,758.58, 188,708.03 and 76,323.57

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Solution

The fourth proportional to 136,758.58, 188,708.03 and 76,323.57 is: 105,316.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,758.58 : 188,708.03 = 76,323.57 : x
  2. Step 2: Convert to fraction form
    136,758.58/188,708.03 = 76,323.57/x
  3. Step 3: Cross multiply
    136,758.58x = 188,708.03 × 76,323.57
  4. Step 4: Simplify right side
    136,758.58x = 14,402,869,734.21
  5. Step 5: Solve for x
    x = 14,402,869,734.21/136,758.58
  6. Step 6: Final answer
    x = 105,316.02

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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.