Home / 115,487.60-173,231.40-80,058.20

Finding the Fourth Proportional to 115,487.60, 173,231.40 and 80,058.20

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Solution

The fourth proportional to 115,487.60, 173,231.40 and 80,058.20 is: 120,087.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,487.60 : 173,231.40 = 80,058.20 : x
  2. Step 2: Convert to fraction form
    115,487.60/173,231.40 = 80,058.20/x
  3. Step 3: Cross multiply
    115,487.60x = 173,231.40 × 80,058.20
  4. Step 4: Simplify right side
    115,487.60x = 13,868,594,067.48
  5. Step 5: Solve for x
    x = 13,868,594,067.48/115,487.60
  6. Step 6: Final answer
    x = 120,087.30

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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.