Home / 118,476.78-177,715.14-47,431.39

Finding the Fourth Proportional to 118,476.78, 177,715.14 and 47,431.39

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Solution

The fourth proportional to 118,476.78, 177,715.14 and 47,431.39 is: 71,147.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,476.78 : 177,715.14 = 47,431.39 : x
  2. Step 2: Convert to fraction form
    118,476.78/177,715.14 = 47,431.39/x
  3. Step 3: Cross multiply
    118,476.78x = 177,715.14 × 47,431.39
  4. Step 4: Simplify right side
    118,476.78x = 8,429,276,114.24
  5. Step 5: Solve for x
    x = 8,429,276,114.24/118,476.78
  6. Step 6: Final answer
    x = 71,147.07

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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.