Home / 142,615.22-213,929.73-117,609.60

Finding the Fourth Proportional to 142,615.22, 213,929.73 and 117,609.60

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Solution

The fourth proportional to 142,615.22, 213,929.73 and 117,609.60 is: 176,420.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,615.22 : 213,929.73 = 117,609.60 : x
  2. Step 2: Convert to fraction form
    142,615.22/213,929.73 = 117,609.60/x
  3. Step 3: Cross multiply
    142,615.22x = 213,929.73 × 117,609.60
  4. Step 4: Simplify right side
    142,615.22x = 25,160,189,973.41
  5. Step 5: Solve for x
    x = 25,160,189,973.41/142,615.22
  6. Step 6: Final answer
    x = 176,420.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.