Home / 125,430.48-173,082.60-71,713.80

Finding the Fourth Proportional to 125,430.48, 173,082.60 and 71,713.80

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Solution

The fourth proportional to 125,430.48, 173,082.60 and 71,713.80 is: 98,958.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,430.48 : 173,082.60 = 71,713.80 : x
  2. Step 2: Convert to fraction form
    125,430.48/173,082.60 = 71,713.80/x
  3. Step 3: Cross multiply
    125,430.48x = 173,082.60 × 71,713.80
  4. Step 4: Simplify right side
    125,430.48x = 12,412,410,959.88
  5. Step 5: Solve for x
    x = 12,412,410,959.88/125,430.48
  6. Step 6: Final answer
    x = 98,958.49

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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.