Home / 112,514.62-155,197.01-72,164.47

Finding the Fourth Proportional to 112,514.62, 155,197.01 and 72,164.47

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Solution

The fourth proportional to 112,514.62, 155,197.01 and 72,164.47 is: 99,540.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,514.62 : 155,197.01 = 72,164.47 : x
  2. Step 2: Convert to fraction form
    112,514.62/155,197.01 = 72,164.47/x
  3. Step 3: Cross multiply
    112,514.62x = 155,197.01 × 72,164.47
  4. Step 4: Simplify right side
    112,514.62x = 11,199,709,611.41
  5. Step 5: Solve for x
    x = 11,199,709,611.41/112,514.62
  6. Step 6: Final answer
    x = 99,540.04

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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.