Home / 142,201.20-213,042.60-115,762.80

Finding the Fourth Proportional to 142,201.20, 213,042.60 and 115,762.80

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Solution

The fourth proportional to 142,201.20, 213,042.60 and 115,762.80 is: 173,433.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,201.20 : 213,042.60 = 115,762.80 : x
  2. Step 2: Convert to fraction form
    142,201.20/213,042.60 = 115,762.80/x
  3. Step 3: Cross multiply
    142,201.20x = 213,042.60 × 115,762.80
  4. Step 4: Simplify right side
    142,201.20x = 24,662,407,895.28
  5. Step 5: Solve for x
    x = 24,662,407,895.28/142,201.20
  6. Step 6: Final answer
    x = 173,433.19

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1.5x scale

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.