Home / 131,610.95-181,622.53-71,181.67

Finding the Fourth Proportional to 131,610.95, 181,622.53 and 71,181.67

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Solution

The fourth proportional to 131,610.95, 181,622.53 and 71,181.67 is: 98,230.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,610.95 : 181,622.53 = 71,181.67 : x
  2. Step 2: Convert to fraction form
    131,610.95/181,622.53 = 71,181.67/x
  3. Step 3: Cross multiply
    131,610.95x = 181,622.53 × 71,181.67
  4. Step 4: Simplify right side
    131,610.95x = 12,928,194,995.03
  5. Step 5: Solve for x
    x = 12,928,194,995.03/131,610.95
  6. Step 6: Final answer
    x = 98,230.39

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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.