Home / 236,605.60-354,908.40-142,127.20

Finding the Fourth Proportional to 236,605.60, 354,908.40 and 142,127.20

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Solution

The fourth proportional to 236,605.60, 354,908.40 and 142,127.20 is: 213,190.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,605.60 : 354,908.40 = 142,127.20 : x
  2. Step 2: Convert to fraction form
    236,605.60/354,908.40 = 142,127.20/x
  3. Step 3: Cross multiply
    236,605.60x = 354,908.40 × 142,127.20
  4. Step 4: Simplify right side
    236,605.60x = 50,442,137,148.48
  5. Step 5: Solve for x
    x = 50,442,137,148.48/236,605.60
  6. Step 6: Final answer
    x = 213,190.80

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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.