Home / 117,417.30-161,925.48-79,183.07

Finding the Fourth Proportional to 117,417.30, 161,925.48 and 79,183.07

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Solution

The fourth proportional to 117,417.30, 161,925.48 and 79,183.07 is: 109,198.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,417.30 : 161,925.48 = 79,183.07 : x
  2. Step 2: Convert to fraction form
    117,417.30/161,925.48 = 79,183.07/x
  3. Step 3: Cross multiply
    117,417.30x = 161,925.48 × 79,183.07
  4. Step 4: Simplify right side
    117,417.30x = 12,821,756,415.22
  5. Step 5: Solve for x
    x = 12,821,756,415.22/117,417.30
  6. Step 6: Final answer
    x = 109,198.19

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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.