Home / 136,530.11-188,412.48-76,104.62

Finding the Fourth Proportional to 136,530.11, 188,412.48 and 76,104.62

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Solution

The fourth proportional to 136,530.11, 188,412.48 and 76,104.62 is: 105,024.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,530.11 : 188,412.48 = 76,104.62 : x
  2. Step 2: Convert to fraction form
    136,530.11/188,412.48 = 76,104.62/x
  3. Step 3: Cross multiply
    136,530.11x = 188,412.48 × 76,104.62
  4. Step 4: Simplify right side
    136,530.11x = 14,339,060,193.66
  5. Step 5: Solve for x
    x = 14,339,060,193.66/136,530.11
  6. Step 6: Final answer
    x = 105,024.89

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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.