Home / 120,427.26-166,155.68-69,435.98

Finding the Fourth Proportional to 120,427.26, 166,155.68 and 69,435.98

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Solution

The fourth proportional to 120,427.26, 166,155.68 and 69,435.98 is: 95,802.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,427.26 : 166,155.68 = 69,435.98 : x
  2. Step 2: Convert to fraction form
    120,427.26/166,155.68 = 69,435.98/x
  3. Step 3: Cross multiply
    120,427.26x = 166,155.68 × 69,435.98
  4. Step 4: Simplify right side
    120,427.26x = 11,537,182,473.37
  5. Step 5: Solve for x
    x = 11,537,182,473.37/120,427.26
  6. Step 6: Final answer
    x = 95,802.08

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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.