Home / 81,609.24-122,173.29-79,597.20

Finding the Fourth Proportional to 81,609.24, 122,173.29 and 79,597.20

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Solution

The fourth proportional to 81,609.24, 122,173.29 and 79,597.20 is: 119,161.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,609.24 : 122,173.29 = 79,597.20 : x
  2. Step 2: Convert to fraction form
    81,609.24/122,173.29 = 79,597.20/x
  3. Step 3: Cross multiply
    81,609.24x = 122,173.29 × 79,597.20
  4. Step 4: Simplify right side
    81,609.24x = 9,724,651,798.79
  5. Step 5: Solve for x
    x = 9,724,651,798.79/81,609.24
  6. Step 6: Final answer
    x = 119,161.16

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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.