Home / 154,588.39-213,331.51-85,682.25

Finding the Fourth Proportional to 154,588.39, 213,331.51 and 85,682.25

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Solution

The fourth proportional to 154,588.39, 213,331.51 and 85,682.25 is: 118,241.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,588.39 : 213,331.51 = 85,682.25 : x
  2. Step 2: Convert to fraction form
    154,588.39/213,331.51 = 85,682.25/x
  3. Step 3: Cross multiply
    154,588.39x = 213,331.51 × 85,682.25
  4. Step 4: Simplify right side
    154,588.39x = 18,278,724,679.79
  5. Step 5: Solve for x
    x = 18,278,724,679.79/154,588.39
  6. Step 6: Final answer
    x = 118,241.25

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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.