Home / 129,918.76-194,838.54-67,555.24

Finding the Fourth Proportional to 129,918.76, 194,838.54 and 67,555.24

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Solution

The fourth proportional to 129,918.76, 194,838.54 and 67,555.24 is: 101,312.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,918.76 : 194,838.54 = 67,555.24 : x
  2. Step 2: Convert to fraction form
    129,918.76/194,838.54 = 67,555.24/x
  3. Step 3: Cross multiply
    129,918.76x = 194,838.54 × 67,555.24
  4. Step 4: Simplify right side
    129,918.76x = 13,162,364,330.95
  5. Step 5: Solve for x
    x = 13,162,364,330.95/129,918.76
  6. Step 6: Final answer
    x = 101,312.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.