Home / 231,513.12-346,725.36-112,812.48

Finding the Fourth Proportional to 231,513.12, 346,725.36 and 112,812.48

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Solution

The fourth proportional to 231,513.12, 346,725.36 and 112,812.48 is: 168,953.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,513.12 : 346,725.36 = 112,812.48 : x
  2. Step 2: Convert to fraction form
    231,513.12/346,725.36 = 112,812.48/x
  3. Step 3: Cross multiply
    231,513.12x = 346,725.36 × 112,812.48
  4. Step 4: Simplify right side
    231,513.12x = 39,114,947,740.49
  5. Step 5: Solve for x
    x = 39,114,947,740.49/231,513.12
  6. Step 6: Final answer
    x = 168,953.48

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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.