Home / 151,628.40-209,322-117,559.68

Finding the Fourth Proportional to 151,628.40, 209,322 and 117,559.68

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Solution

The fourth proportional to 151,628.40, 209,322 and 117,559.68 is: 162,290.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,628.40 : 209,322 = 117,559.68 : x
  2. Step 2: Convert to fraction form
    151,628.40/209,322 = 117,559.68/x
  3. Step 3: Cross multiply
    151,628.40x = 209,322 × 117,559.68
  4. Step 4: Simplify right side
    151,628.40x = 24,607,827,336.96
  5. Step 5: Solve for x
    x = 24,607,827,336.96/151,628.40
  6. Step 6: Final answer
    x = 162,290.36

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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.