Home / 139,880.46-209,841.36-51,113.22

Finding the Fourth Proportional to 139,880.46, 209,841.36 and 51,113.22

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Solution

The fourth proportional to 139,880.46, 209,841.36 and 51,113.22 is: 76,677.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,880.46 : 209,841.36 = 51,113.22 : x
  2. Step 2: Convert to fraction form
    139,880.46/209,841.36 = 51,113.22/x
  3. Step 3: Cross multiply
    139,880.46x = 209,841.36 × 51,113.22
  4. Step 4: Simplify right side
    139,880.46x = 10,725,667,598.78
  5. Step 5: Solve for x
    x = 10,725,667,598.78/139,880.46
  6. Step 6: Final answer
    x = 76,677.38

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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.