Home / 112,514.88-155,270.59-64,115.43

Finding the Fourth Proportional to 112,514.88, 155,270.59 and 64,115.43

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Solution

The fourth proportional to 112,514.88, 155,270.59 and 64,115.43 is: 88,479.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,514.88 : 155,270.59 = 64,115.43 : x
  2. Step 2: Convert to fraction form
    112,514.88/155,270.59 = 64,115.43/x
  3. Step 3: Cross multiply
    112,514.88x = 155,270.59 × 64,115.43
  4. Step 4: Simplify right side
    112,514.88x = 9,955,240,644.20
  5. Step 5: Solve for x
    x = 9,955,240,644.20/112,514.88
  6. Step 6: Final answer
    x = 88,479.33

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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.