Home / 151,783.82-209,520.80-135,840.60

Finding the Fourth Proportional to 151,783.82, 209,520.80 and 135,840.60

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Solution

The fourth proportional to 151,783.82, 209,520.80 and 135,840.60 is: 187,512.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,783.82 : 209,520.80 = 135,840.60 : x
  2. Step 2: Convert to fraction form
    151,783.82/209,520.80 = 135,840.60/x
  3. Step 3: Cross multiply
    151,783.82x = 209,520.80 × 135,840.60
  4. Step 4: Simplify right side
    151,783.82x = 28,461,431,184.48
  5. Step 5: Solve for x
    x = 28,461,431,184.48/151,783.82
  6. Step 6: Final answer
    x = 187,512.95

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1.5x scale

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.