Home / 123,356.24-170,216.20-69,634.64

Finding the Fourth Proportional to 123,356.24, 170,216.20 and 69,634.64

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Solution

The fourth proportional to 123,356.24, 170,216.20 and 69,634.64 is: 96,087.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,356.24 : 170,216.20 = 69,634.64 : x
  2. Step 2: Convert to fraction form
    123,356.24/170,216.20 = 69,634.64/x
  3. Step 3: Cross multiply
    123,356.24x = 170,216.20 × 69,634.64
  4. Step 4: Simplify right side
    123,356.24x = 11,852,943,809.17
  5. Step 5: Solve for x
    x = 11,852,943,809.17/123,356.24
  6. Step 6: Final answer
    x = 96,087.10

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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.