Home / 123,087.09-169,869.51-69,377.16

Finding the Fourth Proportional to 123,087.09, 169,869.51 and 69,377.16

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Solution

The fourth proportional to 123,087.09, 169,869.51 and 69,377.16 is: 95,745.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,087.09 : 169,869.51 = 69,377.16 : x
  2. Step 2: Convert to fraction form
    123,087.09/169,869.51 = 69,377.16/x
  3. Step 3: Cross multiply
    123,087.09x = 169,869.51 × 69,377.16
  4. Step 4: Simplify right side
    123,087.09x = 11,785,064,174.39
  5. Step 5: Solve for x
    x = 11,785,064,174.39/123,087.09
  6. Step 6: Final answer
    x = 95,745.74

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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.