Home / 109,181.80-150,658.68-61,434.16

Finding the Fourth Proportional to 109,181.80, 150,658.68 and 61,434.16

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Solution

The fourth proportional to 109,181.80, 150,658.68 and 61,434.16 is: 84,772.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,181.80 : 150,658.68 = 61,434.16 : x
  2. Step 2: Convert to fraction form
    109,181.80/150,658.68 = 61,434.16/x
  3. Step 3: Cross multiply
    109,181.80x = 150,658.68 × 61,434.16
  4. Step 4: Simplify right side
    109,181.80x = 9,255,589,452.51
  5. Step 5: Solve for x
    x = 9,255,589,452.51/109,181.80
  6. Step 6: Final answer
    x = 84,772.27

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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.