Home / 123,515.92-170,455.10-75,795.60

Finding the Fourth Proportional to 123,515.92, 170,455.10 and 75,795.60

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Solution

The fourth proportional to 123,515.92, 170,455.10 and 75,795.60 is: 104,599.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,515.92 : 170,455.10 = 75,795.60 : x
  2. Step 2: Convert to fraction form
    123,515.92/170,455.10 = 75,795.60/x
  3. Step 3: Cross multiply
    123,515.92x = 170,455.10 × 75,795.60
  4. Step 4: Simplify right side
    123,515.92x = 12,919,746,577.56
  5. Step 5: Solve for x
    x = 12,919,746,577.56/123,515.92
  6. Step 6: Final answer
    x = 104,599.85

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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.