Home / 136,823.08-188,814.07-76,394.76

Finding the Fourth Proportional to 136,823.08, 188,814.07 and 76,394.76

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Solution

The fourth proportional to 136,823.08, 188,814.07 and 76,394.76 is: 105,423.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,823.08 : 188,814.07 = 76,394.76 : x
  2. Step 2: Convert to fraction form
    136,823.08/188,814.07 = 76,394.76/x
  3. Step 3: Cross multiply
    136,823.08x = 188,814.07 × 76,394.76
  4. Step 4: Simplify right side
    136,823.08x = 14,424,405,562.27
  5. Step 5: Solve for x
    x = 14,424,405,562.27/136,823.08
  6. Step 6: Final answer
    x = 105,423.77

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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.