Home / 123,916.67-171,001.78-70,200.31

Finding the Fourth Proportional to 123,916.67, 171,001.78 and 70,200.31

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Solution

The fourth proportional to 123,916.67, 171,001.78 and 70,200.31 is: 96,874.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,916.67 : 171,001.78 = 70,200.31 : x
  2. Step 2: Convert to fraction form
    123,916.67/171,001.78 = 70,200.31/x
  3. Step 3: Cross multiply
    123,916.67x = 171,001.78 × 70,200.31
  4. Step 4: Simplify right side
    123,916.67x = 12,004,376,936.04
  5. Step 5: Solve for x
    x = 12,004,376,936.04/123,916.67
  6. Step 6: Final answer
    x = 96,874.59

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1.5x scale

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.