Home / 119,743.52-165,242.28-66,030.80

Finding the Fourth Proportional to 119,743.52, 165,242.28 and 66,030.80

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Solution

The fourth proportional to 119,743.52, 165,242.28 and 66,030.80 is: 91,120.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,743.52 : 165,242.28 = 66,030.80 : x
  2. Step 2: Convert to fraction form
    119,743.52/165,242.28 = 66,030.80/x
  3. Step 3: Cross multiply
    119,743.52x = 165,242.28 × 66,030.80
  4. Step 4: Simplify right side
    119,743.52x = 10,911,078,992.20
  5. Step 5: Solve for x
    x = 10,911,078,992.20/119,743.52
  6. Step 6: Final answer
    x = 91,120.42

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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.