Home / 136,442.31-188,296.20-76,012.92

Finding the Fourth Proportional to 136,442.31, 188,296.20 and 76,012.92

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Solution

The fourth proportional to 136,442.31, 188,296.20 and 76,012.92 is: 104,901.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,442.31 : 188,296.20 = 76,012.92 : x
  2. Step 2: Convert to fraction form
    136,442.31/188,296.20 = 76,012.92/x
  3. Step 3: Cross multiply
    136,442.31x = 188,296.20 × 76,012.92
  4. Step 4: Simplify right side
    136,442.31x = 14,312,943,986.90
  5. Step 5: Solve for x
    x = 14,312,943,986.90/136,442.31
  6. Step 6: Final answer
    x = 104,901.07

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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.