Home / 117,331.48-162,051.08-79,540.12

Finding the Fourth Proportional to 117,331.48, 162,051.08 and 79,540.12

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Solution

The fourth proportional to 117,331.48, 162,051.08 and 79,540.12 is: 109,855.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,331.48 : 162,051.08 = 79,540.12 : x
  2. Step 2: Convert to fraction form
    117,331.48/162,051.08 = 79,540.12/x
  3. Step 3: Cross multiply
    117,331.48x = 162,051.08 × 79,540.12
  4. Step 4: Simplify right side
    117,331.48x = 12,889,562,349.33
  5. Step 5: Solve for x
    x = 12,889,562,349.33/117,331.48
  6. Step 6: Final answer
    x = 109,855.96

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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.