Home / 112,020.78-168,031.17-33,128.86

Finding the Fourth Proportional to 112,020.78, 168,031.17 and 33,128.86

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Solution

The fourth proportional to 112,020.78, 168,031.17 and 33,128.86 is: 49,693.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,020.78 : 168,031.17 = 33,128.86 : x
  2. Step 2: Convert to fraction form
    112,020.78/168,031.17 = 33,128.86/x
  3. Step 3: Cross multiply
    112,020.78x = 168,031.17 × 33,128.86
  4. Step 4: Simplify right side
    112,020.78x = 5,566,681,106.57
  5. Step 5: Solve for x
    x = 5,566,681,106.57/112,020.78
  6. Step 6: Final answer
    x = 49,693.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.