Home / 123,351.18-170,228.75-75,595.30

Finding the Fourth Proportional to 123,351.18, 170,228.75 and 75,595.30

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Solution

The fourth proportional to 123,351.18, 170,228.75 and 75,595.30 is: 104,324.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,351.18 : 170,228.75 = 75,595.30 : x
  2. Step 2: Convert to fraction form
    123,351.18/170,228.75 = 75,595.30/x
  3. Step 3: Cross multiply
    123,351.18x = 170,228.75 × 75,595.30
  4. Step 4: Simplify right side
    123,351.18x = 12,868,493,424.88
  5. Step 5: Solve for x
    x = 12,868,493,424.88/123,351.18
  6. Step 6: Final answer
    x = 104,324.04

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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.