Home / 112,123.20-168,418.80-94,627.20

Finding the Fourth Proportional to 112,123.20, 168,418.80 and 94,627.20

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Solution

The fourth proportional to 112,123.20, 168,418.80 and 94,627.20 is: 142,138.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,123.20 : 168,418.80 = 94,627.20 : x
  2. Step 2: Convert to fraction form
    112,123.20/168,418.80 = 94,627.20/x
  3. Step 3: Cross multiply
    112,123.20x = 168,418.80 × 94,627.20
  4. Step 4: Simplify right side
    112,123.20x = 15,936,999,471.36
  5. Step 5: Solve for x
    x = 15,936,999,471.36/112,123.20
  6. Step 6: Final answer
    x = 142,138.29

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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.