Home / 112,021.76-168,032.64-92,220.90

Finding the Fourth Proportional to 112,021.76, 168,032.64 and 92,220.90

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Solution

The fourth proportional to 112,021.76, 168,032.64 and 92,220.90 is: 138,331.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,021.76 : 168,032.64 = 92,220.90 : x
  2. Step 2: Convert to fraction form
    112,021.76/168,032.64 = 92,220.90/x
  3. Step 3: Cross multiply
    112,021.76x = 168,032.64 × 92,220.90
  4. Step 4: Simplify right side
    112,021.76x = 15,496,121,290.18
  5. Step 5: Solve for x
    x = 15,496,121,290.18/112,021.76
  6. Step 6: Final answer
    x = 138,331.35

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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.