Home / 136,437.36-188,280.72-76,007.92

Finding the Fourth Proportional to 136,437.36, 188,280.72 and 76,007.92

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Solution

The fourth proportional to 136,437.36, 188,280.72 and 76,007.92 is: 104,889.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,437.36 : 188,280.72 = 76,007.92 : x
  2. Step 2: Convert to fraction form
    136,437.36/188,280.72 = 76,007.92/x
  3. Step 3: Cross multiply
    136,437.36x = 188,280.72 × 76,007.92
  4. Step 4: Simplify right side
    136,437.36x = 14,310,825,903.30
  5. Step 5: Solve for x
    x = 14,310,825,903.30/136,437.36
  6. Step 6: Final answer
    x = 104,889.35

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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.