Home / 119,784.15-165,294.36-66,069.54

Finding the Fourth Proportional to 119,784.15, 165,294.36 and 66,069.54

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Solution

The fourth proportional to 119,784.15, 165,294.36 and 66,069.54 is: 91,171.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,784.15 : 165,294.36 = 66,069.54 : x
  2. Step 2: Convert to fraction form
    119,784.15/165,294.36 = 66,069.54/x
  3. Step 3: Cross multiply
    119,784.15x = 165,294.36 × 66,069.54
  4. Step 4: Simplify right side
    119,784.15x = 10,920,922,329.79
  5. Step 5: Solve for x
    x = 10,920,922,329.79/119,784.15
  6. Step 6: Final answer
    x = 91,171.68

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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.