Home / 123,210.24-170,023.68-69,495.36

Finding the Fourth Proportional to 123,210.24, 170,023.68 and 69,495.36

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Solution

The fourth proportional to 123,210.24, 170,023.68 and 69,495.36 is: 95,899.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,210.24 : 170,023.68 = 69,495.36 : x
  2. Step 2: Convert to fraction form
    123,210.24/170,023.68 = 69,495.36/x
  3. Step 3: Cross multiply
    123,210.24x = 170,023.68 × 69,495.36
  4. Step 4: Simplify right side
    123,210.24x = 11,815,856,850.12
  5. Step 5: Solve for x
    x = 11,815,856,850.12/123,210.24
  6. Step 6: Final answer
    x = 95,899.96

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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.