Home / 136,224.24-188,011.98-79,624.68

Finding the Fourth Proportional to 136,224.24, 188,011.98 and 79,624.68

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Solution

The fourth proportional to 136,224.24, 188,011.98 and 79,624.68 is: 109,895.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,224.24 : 188,011.98 = 79,624.68 : x
  2. Step 2: Convert to fraction form
    136,224.24/188,011.98 = 79,624.68/x
  3. Step 3: Cross multiply
    136,224.24x = 188,011.98 × 79,624.68
  4. Step 4: Simplify right side
    136,224.24x = 14,970,393,743.67
  5. Step 5: Solve for x
    x = 14,970,393,743.67/136,224.24
  6. Step 6: Final answer
    x = 109,895.23

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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.