Home / 136,927.52-188,941.38-76,490.72

Finding the Fourth Proportional to 136,927.52, 188,941.38 and 76,490.72

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Solution

The fourth proportional to 136,927.52, 188,941.38 and 76,490.72 is: 105,546.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,927.52 : 188,941.38 = 76,490.72 : x
  2. Step 2: Convert to fraction form
    136,927.52/188,941.38 = 76,490.72/x
  3. Step 3: Cross multiply
    136,927.52x = 188,941.38 × 76,490.72
  4. Step 4: Simplify right side
    136,927.52x = 14,452,262,193.99
  5. Step 5: Solve for x
    x = 14,452,262,193.99/136,927.52
  6. Step 6: Final answer
    x = 105,546.80

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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.