Home / 123,515.60-170,433.12-69,800.18

Finding the Fourth Proportional to 123,515.60, 170,433.12 and 69,800.18

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Solution

The fourth proportional to 123,515.60, 170,433.12 and 69,800.18 is: 96,313.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,515.60 : 170,433.12 = 69,800.18 : x
  2. Step 2: Convert to fraction form
    123,515.60/170,433.12 = 69,800.18/x
  3. Step 3: Cross multiply
    123,515.60x = 170,433.12 × 69,800.18
  4. Step 4: Simplify right side
    123,515.60x = 11,896,262,453.96
  5. Step 5: Solve for x
    x = 11,896,262,453.96/123,515.60
  6. Step 6: Final answer
    x = 96,313.85

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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.