Home / 120,465.14-166,237.40-69,480

Finding the Fourth Proportional to 120,465.14, 166,237.40 and 69,480

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Solution

The fourth proportional to 120,465.14, 166,237.40 and 69,480 is: 95,879.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,465.14 : 166,237.40 = 69,480 : x
  2. Step 2: Convert to fraction form
    120,465.14/166,237.40 = 69,480/x
  3. Step 3: Cross multiply
    120,465.14x = 166,237.40 × 69,480
  4. Step 4: Simplify right side
    120,465.14x = 11,550,174,725.70
  5. Step 5: Solve for x
    x = 11,550,174,725.70/120,465.14
  6. Step 6: Final answer
    x = 95,879.81

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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.