Home / 119,739.94-165,239.28-66,023.57

Finding the Fourth Proportional to 119,739.94, 165,239.28 and 66,023.57

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Solution

The fourth proportional to 119,739.94, 165,239.28 and 66,023.57 is: 91,111.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,739.94 : 165,239.28 = 66,023.57 : x
  2. Step 2: Convert to fraction form
    119,739.94/165,239.28 = 66,023.57/x
  3. Step 3: Cross multiply
    119,739.94x = 165,239.28 × 66,023.57
  4. Step 4: Simplify right side
    119,739.94x = 10,909,687,582.93
  5. Step 5: Solve for x
    x = 10,909,687,582.93/119,739.94
  6. Step 6: Final answer
    x = 91,111.52

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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.