Home / 139,725.60-192,820.36-76,063.24

Finding the Fourth Proportional to 139,725.60, 192,820.36 and 76,063.24

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Solution

The fourth proportional to 139,725.60, 192,820.36 and 76,063.24 is: 104,966.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,725.60 : 192,820.36 = 76,063.24 : x
  2. Step 2: Convert to fraction form
    139,725.60/192,820.36 = 76,063.24/x
  3. Step 3: Cross multiply
    139,725.60x = 192,820.36 × 76,063.24
  4. Step 4: Simplify right side
    139,725.60x = 14,666,541,319.57
  5. Step 5: Solve for x
    x = 14,666,541,319.57/139,725.60
  6. Step 6: Final answer
    x = 104,966.75

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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.