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Finding the Fourth Proportional to 123,026.45, 169,776.50 and 66,437.82

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Solution

The fourth proportional to 123,026.45, 169,776.50 and 66,437.82 is: 91,684.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,026.45 : 169,776.50 = 66,437.82 : x
  2. Step 2: Convert to fraction form
    123,026.45/169,776.50 = 66,437.82/x
  3. Step 3: Cross multiply
    123,026.45x = 169,776.50 × 66,437.82
  4. Step 4: Simplify right side
    123,026.45x = 11,279,580,547.23
  5. Step 5: Solve for x
    x = 11,279,580,547.23/123,026.45
  6. Step 6: Final answer
    x = 91,684.19

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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.