Home / 131,119.56-180,944.74-71,503.56

Finding the Fourth Proportional to 131,119.56, 180,944.74 and 71,503.56

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Solution

The fourth proportional to 131,119.56, 180,944.74 and 71,503.56 is: 98,674.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,119.56 : 180,944.74 = 71,503.56 : x
  2. Step 2: Convert to fraction form
    131,119.56/180,944.74 = 71,503.56/x
  3. Step 3: Cross multiply
    131,119.56x = 180,944.74 × 71,503.56
  4. Step 4: Simplify right side
    131,119.56x = 12,938,193,073.27
  5. Step 5: Solve for x
    x = 12,938,193,073.27/131,119.56
  6. Step 6: Final answer
    x = 98,674.77

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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.