Home / 142,503.12-213,550.20-80,042.16

Finding the Fourth Proportional to 142,503.12, 213,550.20 and 80,042.16

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Solution

The fourth proportional to 142,503.12, 213,550.20 and 80,042.16 is: 119,948.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,503.12 : 213,550.20 = 80,042.16 : x
  2. Step 2: Convert to fraction form
    142,503.12/213,550.20 = 80,042.16/x
  3. Step 3: Cross multiply
    142,503.12x = 213,550.20 × 80,042.16
  4. Step 4: Simplify right side
    142,503.12x = 17,093,019,276.43
  5. Step 5: Solve for x
    x = 17,093,019,276.43/142,503.12
  6. Step 6: Final answer
    x = 119,948.39

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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.