Home / 136,529.06-188,403.90-76,106.30

Finding the Fourth Proportional to 136,529.06, 188,403.90 and 76,106.30

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Solution

The fourth proportional to 136,529.06, 188,403.90 and 76,106.30 is: 105,023.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,529.06 : 188,403.90 = 76,106.30 : x
  2. Step 2: Convert to fraction form
    136,529.06/188,403.90 = 76,106.30/x
  3. Step 3: Cross multiply
    136,529.06x = 188,403.90 × 76,106.30
  4. Step 4: Simplify right side
    136,529.06x = 14,338,723,734.57
  5. Step 5: Solve for x
    x = 14,338,723,734.57/136,529.06
  6. Step 6: Final answer
    x = 105,023.24

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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.