Home / 136,429.46-188,278.32-76,000.08

Finding the Fourth Proportional to 136,429.46, 188,278.32 and 76,000.08

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Solution

The fourth proportional to 136,429.46, 188,278.32 and 76,000.08 is: 104,883.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,429.46 : 188,278.32 = 76,000.08 : x
  2. Step 2: Convert to fraction form
    136,429.46/188,278.32 = 76,000.08/x
  3. Step 3: Cross multiply
    136,429.46x = 188,278.32 × 76,000.08
  4. Step 4: Simplify right side
    136,429.46x = 14,309,168,373.31
  5. Step 5: Solve for x
    x = 14,309,168,373.31/136,429.46
  6. Step 6: Final answer
    x = 104,883.27

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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.