Home / 112,086.40-168,129.60-49,763.20

Finding the Fourth Proportional to 112,086.40, 168,129.60 and 49,763.20

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Solution

The fourth proportional to 112,086.40, 168,129.60 and 49,763.20 is: 74,644.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,086.40 : 168,129.60 = 49,763.20 : x
  2. Step 2: Convert to fraction form
    112,086.40/168,129.60 = 49,763.20/x
  3. Step 3: Cross multiply
    112,086.40x = 168,129.60 × 49,763.20
  4. Step 4: Simplify right side
    112,086.40x = 8,366,666,910.72
  5. Step 5: Solve for x
    x = 8,366,666,910.72/112,086.40
  6. Step 6: Final answer
    x = 74,644.80

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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.