Home / 120,354.29-166,075.51-66,625.85

Finding the Fourth Proportional to 120,354.29, 166,075.51 and 66,625.85

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Solution

The fourth proportional to 120,354.29, 166,075.51 and 66,625.85 is: 91,936.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,354.29 : 166,075.51 = 66,625.85 : x
  2. Step 2: Convert to fraction form
    120,354.29/166,075.51 = 66,625.85/x
  3. Step 3: Cross multiply
    120,354.29x = 166,075.51 × 66,625.85
  4. Step 4: Simplify right side
    120,354.29x = 11,064,921,851.37
  5. Step 5: Solve for x
    x = 11,064,921,851.37/120,354.29
  6. Step 6: Final answer
    x = 91,936.25

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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.