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Finding the Fourth Proportional to 123,020.51, 169,530.57 and 88,968.92

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Solution

The fourth proportional to 123,020.51, 169,530.57 and 88,968.92 is: 122,605.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,020.51 : 169,530.57 = 88,968.92 : x
  2. Step 2: Convert to fraction form
    123,020.51/169,530.57 = 88,968.92/x
  3. Step 3: Cross multiply
    123,020.51x = 169,530.57 × 88,968.92
  4. Step 4: Simplify right side
    123,020.51x = 15,082,950,872.23
  5. Step 5: Solve for x
    x = 15,082,950,872.23/123,020.51
  6. Step 6: Final answer
    x = 122,605.18

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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.