Home / 136,630.13-188,544.96-75,378.77

Finding the Fourth Proportional to 136,630.13, 188,544.96 and 75,378.77

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Solution

The fourth proportional to 136,630.13, 188,544.96 and 75,378.77 is: 104,020.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,630.13 : 188,544.96 = 75,378.77 : x
  2. Step 2: Convert to fraction form
    136,630.13/188,544.96 = 75,378.77/x
  3. Step 3: Cross multiply
    136,630.13x = 188,544.96 × 75,378.77
  4. Step 4: Simplify right side
    136,630.13x = 14,212,287,174.50
  5. Step 5: Solve for x
    x = 14,212,287,174.50/136,630.13
  6. Step 6: Final answer
    x = 104,020.15

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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.