Home / 123,431.12-170,335.06-69,716.24

Finding the Fourth Proportional to 123,431.12, 170,335.06 and 69,716.24

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Solution

The fourth proportional to 123,431.12, 170,335.06 and 69,716.24 is: 96,208.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,431.12 : 170,335.06 = 69,716.24 : x
  2. Step 2: Convert to fraction form
    123,431.12/170,335.06 = 69,716.24/x
  3. Step 3: Cross multiply
    123,431.12x = 170,335.06 × 69,716.24
  4. Step 4: Simplify right side
    123,431.12x = 11,875,118,897.41
  5. Step 5: Solve for x
    x = 11,875,118,897.41/123,431.12
  6. Step 6: Final answer
    x = 96,208.47

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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.