Home / 125,768.66-173,559.93-71,331.20

Finding the Fourth Proportional to 125,768.66, 173,559.93 and 71,331.20

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Solution

The fourth proportional to 125,768.66, 173,559.93 and 71,331.20 is: 98,436.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,768.66 : 173,559.93 = 71,331.20 : x
  2. Step 2: Convert to fraction form
    125,768.66/173,559.93 = 71,331.20/x
  3. Step 3: Cross multiply
    125,768.66x = 173,559.93 × 71,331.20
  4. Step 4: Simplify right side
    125,768.66x = 12,380,238,078.82
  5. Step 5: Solve for x
    x = 12,380,238,078.82/125,768.66
  6. Step 6: Final answer
    x = 98,436.59

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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.