Home / 119,628.74-165,091.40-68,650.80

Finding the Fourth Proportional to 119,628.74, 165,091.40 and 68,650.80

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Solution

The fourth proportional to 119,628.74, 165,091.40 and 68,650.80 is: 94,740.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,628.74 : 165,091.40 = 68,650.80 : x
  2. Step 2: Convert to fraction form
    119,628.74/165,091.40 = 68,650.80/x
  3. Step 3: Cross multiply
    119,628.74x = 165,091.40 × 68,650.80
  4. Step 4: Simplify right side
    119,628.74x = 11,333,656,499.99
  5. Step 5: Solve for x
    x = 11,333,656,499.99/119,628.74
  6. Step 6: Final answer
    x = 94,740.25

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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.